Solve the problem.A barge travels with a velocity of 3 + 6j mi/h relative to the river in which it moves. The velocity of the river's current is 3 - 3j mi/h relative to the riverbank. Find the velocity of the boat relative to the riverbank.
A. 6 + 9j mi/h
B. -6 - 9j mi/h
C. 6 + 3j mi/h
D. 6 - 3j mi/h
Answer: C
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Solve the problem.From 1992 to 1999, the number of automobile vehicle tags purchased in a certain city can be modeled by 
Find the number of vehicle tags purchased in 1992.
A. 1185 B. 10,850 C. 0 D. 1085
Solve.Find the sale price when the original price is $19,000.00 at a discount of 39%.
A. $11,590.00 B. $18,259.00 C. $7410.00 D. $741.00
Solve.A rectangular box with volume 468 cubic feet is built with a square base and top. The cost is $1.50 per square foot for the top and the bottom and $2.00 per square foot for the sides. Let x represent the length of a side of the base in feet. Express the cost of the box as a function of x and then graph this function. From the graph find the value of x, to the nearest hundredth of a foot, which will minimize the cost of the box.
A. 8.44 feet B. 8.63 feet C. 8.55 feet D. 7.92 feet
Show that f and g are inverses of each other by verifying that f(g(x)) = x = g(f(x)).f(x) = 
; g(x) =
What will be an ideal response?