Subtract. Check by adding.

A. 1128
B. 240
C. 144
D. 244


Answer: D

Mathematics

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Translate the description to a variable expression.The surface area of a cube can be found by multiplying six by the length of a side squared. Write an expression for finding the surface area of a cube.

A. 6s B. (6s)2 C. s2 + 6 D. 6s2

Mathematics

Solve the problem.S(x) = -x3 + 6x2 + 288x + 4000, 4 ? x ? 20 is an approximation to the number of salmon swimming upstream to spawn, where x represents the water temperature in degrees Celsius. Find the temperature that produces the maximum number of salmon.

A. 4°C B. 20°C C. 12°C D. 8°C

Mathematics

Find the sum.

A. 256.14 B. 212.08 C. 304.1 D. 47.96

Mathematics

Solve the application.On the morning of February 2nd the temperature was 9°F. The next morning the temperature had dropped 15°F. What was the temperature on the morning of February 3rd?

A. The temperature on the morning of February 3rd was 24°F. B. The temperature on the morning of February 3rd was -24°F. C. The temperature on the morning of February 3rd was -6°F. D. The temperature on the morning of February 3rd was -15°F.

Mathematics