Answer:
The measure of the length is 
Step-by-step explanation:
Let
x-----> the length of rectangle
y-----> the width of rectangle
we know that
The perimeter of rectangle is equal to


so

Simplify
-----> equation A
----> equation B
Substitute equation B in equation A and solve for y




Find the value of x

114.5 because if he’s 13 he should weigh about 100-110 pounds so it’s 114.5
Answer:
2
When the decimal is 5 or more, the number is rounded up by converting it into the next whole number.