Askating rink needs 200 prizes. a patent donates 9 small boxes of prizes and 2 large boxes of prizes. small box has 10 pens in each box and a large box has 15 pens in each box. how many more prizes will the skating rink need?

if there are 9 small boxes that contains 10 pens in each box that is a total of 90 pens.  2 large boxes which has 15 pens in each box that is a total of 30 pens.  so all together you have 120 prizes.  you need 200 so you subtract 120 from 200 which leaves you needing 80 prizes.  your answer is 80 more prizes.  

you divide the cost ($15) by the quantity (6) to get your questions answer. the yo-yo costs $2.50. hope this : )!

step-by-step explanation:

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