Mathematics, 17.04.2020 20:10, 20calzoy

A student scored 85, 87, 92, and 89 on their first 4 math tests. What would they need to make on their fifth test to have an 'A' test average (90%)?

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A student scored 85, 87, 92, and 89 on their first 4 math tests. What would they need to make on the...