Asked by Monica

Huong covered a box with sticky-backed decorating paper. The paper costs $.03 per square inch. How much money will Huong need to spend on paper if the height of the box is 9 inches, width is 3 inches, and the length is 7 inches?
Please show full work. Thank you.
Answered by Jessica
I thought Huong had to spend $3.42 because I multiplied $.03x9 and got $.27 and then I multiplied $.03x3 and got $.09. I also multiplied $.03x7 and got $.21, then I added them and got $.57. Finally I multiplied $.57x6 (by the number of sides of the box) and got $3.42. However, I am not sure if my answer is correct or not. Please help me if I did not get it right, if I did please tell me. Thank you.
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