Joanna is selling cheese at the farmers market one wheel and cheese has a diameter of 9 in what is the area of the wheel of cheese use 3.14 for π

Question

____Square inches
If the nine inch wheel of cheese cost $18.60what is the cost per square inch if the cost is less than a dollar put a zero to the left of the decimal point.
$____ per square inch

Answer 1

R = 9/2 = 4.5 inches radius
area = 3.14 * 4.5^2

18.6 dollars / area from part A

Answer 2

well pi is 3.14159265359

Answer 3

so what are the two answers