# These math questions are kicking my butt. ANY HELP?

I have done these questions over and over again and can't get them right. Help please!
A playground is being designed where children can interact with their friends in certain combinations.
If there is 1 child, there can be 0 interactions.
If there are 2 children, there can be only 1 interaction.
If...
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I have done these questions over and over again and can't get them right. Help please!

A playground is being designed where children can interact with their friends in certain combinations.

If there is 1 child, there can be 0 interactions.

If there are 2 children, there can be only 1 interaction.

If there are 3 children, there can be 4 interactions.

If there are 4 children, there can be 9 interactions.

How many interactions will there be for 8 children?

Answer 49

64

40

36

.1 points

Question 2

A playground is being designed where children can interact with their friends in certain combinations.

If there is 1 child, there can be 0 interactions.

If there are 2 children, there can be only 1 interaction.

If there are 3 children, there can be 4 interactions.

If there are 4 children, there can be 9 interactions.

Which recursive equation represents the pattern?

Answer an = an–1 + 3n – 2

an = an–1 + 2n – 3

an = an–1 + (3n – 2)

an = an–1 + (2n – 3)

.2 points

Question 3

Shirley purchased a plot of land for $19,500. The land appreciates about 3.9% each year. What is the value of the land after five years?

Answer $19,818.94

$23,302.50

$15,982.75

$23,610.89

.3 points

Question 4

Luther purchased a motorcycle for $11,592. It depreciates about 7.2% each year. What is the value of the motorcycle after six years?

Answer $11,180.90

$7,403.66

$17,592.48

$6,584.26

.3 points

Question 5

The yearly attendance at a local movie theater is 42,000 and grows continuously at a rate of 5.9% each year. What is the approximate attendance at the movie theater in seven years?

Answer 62,737

59,346

43,467

63,476

.3 points

Question 6

The number of customers that visit a local small business is 37,800 and has been continuously declining at a rate of 1.7% each year. What is the approximate number of customers that visit the business in 12 years?

Answer 30,770

32,017

30,824

46,354

A playground is being designed where children can interact with their friends in certain combinations.

If there is 1 child, there can be 0 interactions.

If there are 2 children, there can be only 1 interaction.

If there are 3 children, there can be 4 interactions.

If there are 4 children, there can be 9 interactions.

How many interactions will there be for 8 children?

Answer 49

64

40

36

.1 points

Question 2

A playground is being designed where children can interact with their friends in certain combinations.

If there is 1 child, there can be 0 interactions.

If there are 2 children, there can be only 1 interaction.

If there are 3 children, there can be 4 interactions.

If there are 4 children, there can be 9 interactions.

Which recursive equation represents the pattern?

Answer an = an–1 + 3n – 2

an = an–1 + 2n – 3

an = an–1 + (3n – 2)

an = an–1 + (2n – 3)

.2 points

Question 3

Shirley purchased a plot of land for $19,500. The land appreciates about 3.9% each year. What is the value of the land after five years?

Answer $19,818.94

$23,302.50

$15,982.75

$23,610.89

.3 points

Question 4

Luther purchased a motorcycle for $11,592. It depreciates about 7.2% each year. What is the value of the motorcycle after six years?

Answer $11,180.90

$7,403.66

$17,592.48

$6,584.26

.3 points

Question 5

The yearly attendance at a local movie theater is 42,000 and grows continuously at a rate of 5.9% each year. What is the approximate attendance at the movie theater in seven years?

Answer 62,737

59,346

43,467

63,476

.3 points

Question 6

The number of customers that visit a local small business is 37,800 and has been continuously declining at a rate of 1.7% each year. What is the approximate number of customers that visit the business in 12 years?

Answer 30,770

32,017

30,824

46,354

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