√8
for the equations of circles: x²+y²= (radius)²
27.75/5 = $5.55 per book
32.16/6 = $5.36 per book
The online store is the cheapest because it has the lowest unit rate
the answer is n=5
you just divide by 14 on both sides of the equation
ANSWER

EXPLANATION
The given function is

This function is defined for values where the denominator is not equal to zero.


The domain is

Or
