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A rectangular box is to have a square base and a volume of 50 ft3. The material for the base costs 42¢/ft2, the material for the sides costs 10th¢/ft2, and the material for the top costs 30¢/ft2. Letting

asked Feb 17, 2020

Mathematics
high-school

1 answer

1 vote

140k views

A student makes several observations about a piece of iron. which observation describes a chemical property of the iron? A. it's mass is 52 grams. B. it's density is 7.9 grams/centimeter³. C. it rusts

asked Dec 9, 2019

Geography
middle-school

2 answers

2 votes

19.8k views

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