Simplify. Assume that variables can represent any real number.

A. 7t
B. 24
C. 7
D. 7t2

Answer: C

Mathematics

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Write the number using scientific notation.16,000,000

A. 1.6 × 10-7   B. 1.6 × 10-6 C. 1.6 × 107 D. 1.6 × 106

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Complete numerical representations for the functions f and g are given. Evaluate the expression, if possible.(g?f)(1)

A. 11 B. -1 C. -5 D. 5

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Solve.Find the area and perimeter of the rectangle. Simplify each expression.   + 1 ft

A. area: 7 sq ft, perimeter: 4 ft
B. area: 63 sq ft, perimeter: 8 + 2 ft
C. area: (9 + 4) sq ft, perimeter: 8 ft
D. area: 7 sq ft, perimeter: 8 ft

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