Sara had 126 dollars to spend on 9 books. After buying them she had 18 dollars. How much did each book cost?

$12

Since we know she had $18 left over, we can just subtract $18 from $126 to get $108. and now we can just do 108/9 to get 12

it is a reproduction.

step-by-step explanation:

80π/3 or about 83.775

step-by-step explanation:

since a cone is 1/3 of a cylinder, we need to find the base's area. since area = πr^2, we get 16π. then, multiplying this by 5, we get 80π. dividing by 3, since the cone's volume is 1/3 of that of a cylinder's, we get 80π/3.

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