Subtract.-9 - (-8)
A. -17
B. -1
C. 17
D. 1
Answer: B
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For an infusion pump, you must calculate the flow rate in mL/hr. If a doctor orders an IV of 500 mL fluid to be infused over 5 hours, calculate the flow rate in mL/hr.
A. 250 mL/hr B. 50 mL/hr C. 167 mL/hr D. 100 mL/hr
Solve.In your department the ages of the employees are 28, 40, and 43. Find the average age of the three employees.
A. 36 B. 35 C. 37 D. 38
Solve the system of equations.
A. x = -5, y = 3, z = 0; (-5, 3, 0) B. x = -5, y = 0, z = 3; (-5, 0, 3) C. x = 0, y = 3, z = -5; (0, 3, -5) D. inconsistent
Solve the problem. Assume that relative maximum and minimum values are absolute maximum and minimum values.A computer firm markets two kinds of electronic calculator that compete with one another. The total revenue function is 
where p is the price of the first calculator (in multiples of $10), and q is the price of the second calculator (in multiples of $10). What prices should be charged in order to maximize the total revenue?
A. $5 and $90 B. $20 and $120 C. $40 and $170 D. $6.70 and $180