can someone help me with math PLEASE ASAP OMFG?

Question

Answer 1

 The missing step:

 A) (5 x (-0.7)) x (-20 x 100)

Answer 2

You have the product of 4 numbers.

Next you are grouping them into pairs and then multiplying those together.

So how are you pairing the numbers to make -100 and -70?

Hint: 5 x 20 = 100

Remember it is a multiplication with *no* addition.