Solve the equation. Express radicals in simplest form.x2 + 4 = 68
A. ±7
B. 8
C. 34
D. ±8
Answer: D
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Write the equation of the line that has the given slope and passes through the given point. Write the equation in slope-intercept form.m = 
; (0, 3)
A. y = 
x + 
B. y = - 
x - 3
C. y = 
x + 3
D. y = 
x - 3
Convert the units.17.50 m = km
A. 1750 km B. 0.175 km C. 0.0175 km D. 17,500 km
Solve the problem.A business estimates that the salvage value V of a piece of machinery after t years is given by 
After what amount of time will the salvage value be $644?
A. After 9.6 years B. After 10.6 years C. After 7.6 years D. After 8.6 years
A new car dealership has taken an inventory of the vehicles it has in stock. Below is a histogram indicating the number of vehicles in stock in certain price ranges. Use the histogram to answer the question.
How many vehicles does the dealership have in stock that are priced at less than $28,000?
A. 50 vehicles B. 30 vehicles C. 10 vehicles D. 6 vehicles