Rashal is adding the expression below. –3 + [(–7) + (–6)] first, he rewrites the expression. [–3 + (–7)] + (–6) which number property did rashal use to rewrite the expression?
associative property
commutative property
distributive property
identity property

To rewrite the expression –3 + [(–7) + (–6)]  as  [–3 + (–7)] + (–6) , Rashal uses associative property.

Step-by-step explanation:

Given : Rashal is adding the expression below. –3 + [(–7) + (–6)]

First, he rewrites the expression. [–3 + (–7)] + (–6)

We have to state which number property did Rashal use to rewrite the expression.

For a , b and c be integers, the following are the property under addition,

associative property : commutative property : distributive property : identity property: for 0 be the identity under addition.

Thus, To rewrite the expression –3 + [(–7) + (–6)]  as  [–3 + (–7)] + (–6) , Rashal uses associative property.

the law of definite proportions states samples of a compound will always contain the same proportion of elements by mass. in other words, a given compound will always contain the same elements in the same proportions by mass.the law of multiple proportions states when two elements combine with each other to form more than one compound, then the weights of one element that combine with a fixed weight of the other are in a ratio of small whole numbers.

Same length is comparing because it’s saying its the same and not different