i need help on my math questions

Question

Simplify the expression below using the commutative or associative property of multiplication. Identify which property you used, and explain why you chose that property.

(-4½ ∙  -1/50) ∙ 100

Make sure you answer all parts:

1. Property:

2. Simplified Expression:

3. Explanation:

HTML EditorKeyboard Shortcuts

Answer 1

the dots indicate multiplication. Multiplication is associative. (xy)z = (x)(yz). It doesn't matter the order of the multiplication,.

(-4 1/2) (-1/50 x 100) = -4 1/2 (-2) = 9

you can multiply the last two terms first, even though the parentheses have the 1st two terms together. That's the associative property of multiplication Order doesn't matter

It made the multiplication simpler

You could have done the first two first, getting 9/100 and then multiply by 100 to get 9. Either way works.

You could also have multiplied the 1st and 3rd terms first to get -450 and then multiply by -1/50 to get 9. The answers will all be the same,