Evaluate.82 + 22 - 22 + 13
A. 91
B. 247
C. 11
D. 59
Answer: D
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Solve.A plumber's total bill A can be calculated using the formula 
where R is his hourly rate, T is the total labor time in hours, and M is the cost of materials. A plumber bids a particular job at $3200. If materials amount to $865, and his hourly rate is $76 per hour, how many hours should the job take for the estimate to be accurate? (Round to the nearest whole number, if necessary.)
A. 50 hours B. 31 hours C. 53 hours D. 29 hours
Write each inequality in interval notation and graph the interval on a number line.x > 5
A. [5, ?)
B. (-?, 5)
C. (5, ?)
D. (-?, 5]
Identify where f is increasing and where f is decreasing.f(x) = x2 + 8x
A. increasing: [8, ?); decreasing (-?, 8] B. increasing: (-?, -4]; decreasing [-4, ?) C. increasing: [-4, ?); decreasing (-?, -4] D. increasing: (-?, 8]; decreasing [8, ?)
Solve the equation.
+ y = -2
A. - 
B. -16
C. - 
D. 