Mathematics, 13.11.2020 19:40 ahorseman

Lois wants to average 83% on her 5 tests to assure herself a B. If she scores 72%, 90%, 85% and 88% on her first four tests, what does she need to earn on her last test to meet her goal?

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Lois wants to average 83% on her 5 tests to assure herself a B. If she scores 72%, 90%, 85% and 88%...

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