Evaluate the algebraic expression under the given conditions.9x + 2y for x = 4, y = 8
A. 52
B. 80
C. 88
D. 44
Answer: A
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Solve the problem.A twin-engined aircraft can fly 960 miles from city A to city B in 4 hours with the wind and make the return trip in 6 hours against the wind. What is the speed of the wind?
A. 60 mph B. 80 mph C. 20 mph D. 40 mph
Solve the problem.A garage owner wants to fill a 55-gallon drum with a 20% winter mixture of antifreeze for his customers. How many gallons of 100% antifreeze should he mix with some 10% antifreeze mixture in order to fill the drum?
A. 19
gal
B. 6
gal
C. 35
gal
D. 48
gal
Provide an appropriate response.The lowest rate of interest charged by banks for short-term loans to their most creditworthy customers is known as the:
A. prime interest rate B. all of these are appropriate references C. base lending rate D. reference rate
Solve.A deep-sea diver dives from the surface to 124 feet below the surface and then swims up 10 feet, down 18 feet, down another 26 feet, and then up 21 feet. Find the diver's depth after these movements.
A. -137; 137 ft below the surface B. -85; 85 ft below the surface C. -49; 49 ft below the surface D. -157; 157 ft below the surface