Use order of operations to simplify the expression.[-20.6 + (16.6 - 3.9)] - 2.1

A. -10
B. -5.8
C. -39
D. 31.2


Answer: A

Mathematics

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Use problem solving strategies to solve the problem.There is a number between 100 and 115, such that if you find the sum of the cubes of the digits, subtract this sum from 99, divide the result by 3, and add the digits once more, you get 2. What is the number?

A. 114 B. 113 C. 111 D. 103

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Solve the problem.The distance d in miles that can be seen on the surface of the ocean is given by  where h is the height in feet above the surface. How high (to the nearest foot) would a platform have to be to see a distance of 16.5 miles?

A. 121 ft B. 272 ft C. 110 ft D. 408 ft

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For the pair of functions, perform the indicated operation.f(x) = 3x + 8, g(x) = 4x + 6Find (f ? g)(x).

A. 12x2 + 50x + 48 B. 7x2 + 50x + 14 C. 12x2 + 48 D. 12x2 + 38x + 48

Mathematics

Tell whether or not the rational expressions are equivalent.

A. Yes B. No

Mathematics