How much will it cost for him to buy 3 dozen using the rate $12.00 for 20 cookies?
1 answer:
3 dozen = 36 cookies
20/12 = 1.666666666666667
1.666666666666667 = 1 cookie
(x36)
36 x 1.666666666666667 = 60
It will cost him $60 for 3 dozen cookies
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