Answer:

Step-by-step explanation:
we know that
The area of the circle is equal to

where
D is the diameter of the circle
Solve for D
That means-----> Isolate the variable D
Multiply both sides by 4 to remove the fraction

Divide both sides by π

square root both sides

Rewrite

Simplify

Answer:
4137.5 per year
Step-by-step explanation:
what you would do is take the number for private college and divide it by 8 years since you only want one year and divide that by four since it says four years and that would be your answer
I hope this helps you
5×(3-2)=5×1=5
or
5×3+5×(-2)=15+(-10)=15-10=5