Question

A sporting goods store charges $30 for 12 cans of tennis balls and $45 for two boxes of golf balls. A coach orders 100 cans of tennis balls and 5 boxes of golf balls. How much will the coach pay for the tennis and golf balls?

Answer 1

tennis ball
12 cans = $30
1 can = $ 30/12 = $2.5

golf balls
2 boxes = $45
1 box = $45 /2 = $ 22.5

100 cans of tennis balls + 5 boxes of golf boxes
(100 * $ 2.5) + ( 5 * $ 22.5)
$250 + $112.5
$362.5