Add.
A. 38
B. 35
C. 33
D. 36
Answer: B
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Solve the problem. If the answer is an amount of money, round to the nearest dollar.Brand X copier advertises that its copiers run 19% longer between service calls than its competitor. If Brand X copiers run 55,500 copies between services, how many copies would the competitor run?
A. 30,663 B. 44,955 C. 46,639 D. 66,045
Solve the problem.An experimental model for a suspension bridge is built. In one section, cable runs from the top of one tower down to the roadway, just touching it there, and up again to the top of a second tower. The towers stand 60 inches apart. At a point between the towers and 15 inches along the road from the base of one tower, the cable is 2.25 inches above the roadway. Find the height of the towers.
A. 8.5 in. B. 9 in. C. 9.5 in. D. 11 in.
Use the REGRESSION feature on a graphing calculator.A study was conducted to compare the average time spent in the lab each week versus course grade for computer students. The results are recorded in the table below. 
Use linear regression to find a linear function that predicts a student's course grade as a function of the number of hours spent in lab.
A. y = 88.6 - 1.86x B. y = 1.86 + 88.6x C. y = 0.930 + 44.3x D. y = 44.3 + 0.930x
Simplify.60
A. 1 B. 6 C. -1 D. -6