1/2 + 9/10 + 4/5

A. 2 1/5

B. 2 2/10

C. 14/17

D. 22/10

One winter night the temperature fell 12 degrees between midnight and 5 a. m. by 9 a. m. the temperature had doubled from what it was at 5 a. m. by noon, it had risen another 8 degrees to 28 degrees. what was the temperature at midnight?

Solve for b in the formula 3a + 2b = c. b = c - 3a b = c-2 / 3a b = c-3a / 2 b = 2c / 3a

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What is 2 1/2 / 1/3?

42+36 = use rounding or compatible numbers to estimate the sum

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