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Re: One pen costs $0.25 and one marker costs $0.35. At those pri [#permalink]
12 Sep 2017, 12:17

Expert's post

Explanation

Quote:

Multiplying $0.25 by 18 yields $4.50, which is the cost of the 18 pens; and multiplying $0.35 by 100 yields $35.00, which is the cost of the 100 markers. The total cost is therefore Equivalent decimals, such as $4.50 + $35.00 = $39.50. $39.5 or $39.500, are considered correct. Thus, the correct answer is $39.50 (or equivalent).