Solve the problem. Write your answer as a mixed number when possible.A biology experiment required pouring 
gallon of nutrient solution and 
gallon of pure water into a tank. At the end of the experiment, 
gallon of fluid had evaporated. How much fluid remained in the tank?
A. 
gallon(s)
B. 
gallon(s)
C. 2
gallons(s)
D. 
gallon(s)
Answer: A
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Find the average velocity of an object which follows the position function s(t) over the given interval.s(t) = sin (4t), 
A. 
B. - 
C. 
D. 
Solve the problem.Show that g(x) = 
is an increasing function of x.
What will be an ideal response?
Solve the problem. Round to the nearest dollar.A construction company purchased a piece of equipment for $1,610. The expected life is 9,000 hours, after which it will have a salvage value of $290. Find the amount of depreciation for the first year if the piece of equipment was used for 1,700 hours. Use the units-of-production method of depreciation.
A. $177 B. $149 C. $255 D. $304
Solve the problem.In a certain coastal basin, the sea water contains 3.4 grams of salt per 1000 milliliters of water. How many grams of salt would be in 4 liters of the sea water?
A. 0.136 grams B. 1360 grams C. 13.6 grams D. 136 grams