Answer:
75%
Step-by-step explanation:
First find the number of boys.
80 - 20 = 60
Now find the percentage my taking the number of boys upon the total, times that by 100 which gives the percentage.
× 100 = 75%
Let
be the length and
be the width of the rectangle.
Given perimeter of the rectangle

Area of the rectangle is

Also length is 5 more than twice its width,

From the above equations

Now 
The dimensions of the rectangle are length
, and width
.
Sorry I know the last part only
correct version is Ei Whitney whom was born December 8 1765
the rest got cut off
Answer:
The answer is B
Step-by-step explanation:
you add all of the numbers
His total spending money is $90, so that is what the equations going to equal. Then he can spend $2.50 each time. So 2.50x = 90