Answer:

Step-by-step explanation:
Since perimeter,
and we know that P=2(l+w) then 
The length will be 
Now 
Answer:
B) Associative Property of Multiplication
Step-by-step explanation:
The associative property states you can change where the parentheses (grouping terms) are in a multiplication statement, and you'll get the same product.
More generally:
(a * b) * c = a * (b * c)
Answer:
Step-by-step explanation:
Let her brother's age be x
Sarah is 2x + 4
Answer:
30% chance the reason I say that is because he only has 1 kiwi and for the most part he would choose the Kiwi first don't quote me on that just trying to help
Answer:
a. n x (2n +1) = 10
b. length: 5 width: 2
Step-by-step explanation:
5 is 1 more then 2 times 2