Write the sentence using the requested unit of measure. Jason's brother weighs 40 kilograms. Express this number in pounds. Use a decimal approximation.
A. Jason's brother weighs 42.4 pounds.
B. Jason's brother weighs 18 pounds.
C. Jason's brother weighs 88 pounds.
D. Jason's brother weighs 101.6 pounds.
Answer: C
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Write an equation for a function whose graph fits the given description.The graph of f(x) = x2 is vertically stretched by a factor of 7, and the resulting graph is reflected across the x-axis.
A. f(x) = 7(x - 7)x2 B. f(x) = -7x2 C. f(x) = (x - 7)2 D. f(x) = 7x2
Use front-end rounding to round each number. Then, add or subtract the rounded numbers to get an estimated answer. Finally, find the exact answer.estimate exact 
A. Estimate: 49; exact: 44.66 B. Estimate: 49; exact: 53.66 C. Estimate: 49; exact: 54.66 D. Estimate: 50; exact: 55.66
Solve the equation.logy14 = 2
A. 
B. {21/14}
C. {142}
D. {141/2}
Find the relative extrema of the function, if they exist.f(x) = x3 - 12x + 4
A. Relative maximum at (5, 69); relative minimum at (2, -12) B. Relative maximum at (-2, 20); relative minimum at (2, -12) C. Relative maximum at (5, 69); relative minimum at (-3, 13) D. Relative minimum at (-2, 20); relative maximum at (2, -12)