Simplify.21 × (25.2 + 0.642)
A. 5426.82
B. 529.842
C. 664.02
D. 542.682
Answer: D
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The perimeter of a rectangle is 78 inches. The width of the rectangle is 9 inches less than thelength of the rectangle. Find the dimensions of the rectangle.
A. The dimensions of the rectangle are 15 inches by 24 inches. B. The dimensions of the rectangle are 14 inches by 23 inches. C. The dimensions of the rectangle are 13 inches by 22 inches. D. The dimensions of the rectangle are 16 inches by 25 inches. E. The dimensions of the rectangle are 17 inches by 26 inches.
Find the difference. Write the difference in lowest terms.
- 
A. 
B. 
C. 
D. 
Supply the missing numbers. fraction decimal percent 
If necessary, round the decimal to the nearest thousandth and the percent to the nearest tenth.
A. 0.02 0.2% B. 0.14 14% C. 0.02 2% D. 0.14 140%
Solve the equation by the square root property. If possible, simplify radicals or rationalize denominators. Express imaginary solutions in the form 
2 = 
A. {-3, 4} B. {-6, 8} C. {-4, 3} D. {-8, 6}