Jake isn't doing well in history. He made a 67 on his first test. His second test was even worse; he scored a 52. What does Jake need to score on the next test to have a test average of 70?
thanks for any help!
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+874 $\frac{67 + 52 + x}{3} = 70$
$119 + x = 210$
$x = 210 - 119$
$\boxed{x = 91}$
