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Mathematics 7 Online
OpenStudy (anonymous):

WILL GIVE MEDAL!! PLEASE HELP!! Ruby red paint costs $0.50 per square inch. A ball is painted ruby red and costs $100.00 to paint. What is the diameter of the ball? Round to the nearest tenth of an inch. A. 4.0 in. B. 5.6 in. C. 8.0 in. D. 16.0 in.

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