Answer:
the answer would be c
Step-by-step explanation: Because the values inside of the parenthesis don't have the same variable, they cannot be combined. Using the 9 on the outside of the parenthesis you would multiply 9 by 3r, which gives you 27r, and 9 by -4 to create -36. The new equation would be 27r - 36, which is equivalent to the equation shown next to it.
Answer:
Step-by-step explanation:
Um
Answer:
Yes, 2 is a rational number.
She used the associative property which should only be used with positive numbers (sorry if it isn't the answer you're looking for)
