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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?

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Subediprashantid
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

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