Solve the equation.2(x + 7) = 3(x - 8)
A. {-38}
B. {38}
C. {3}
D. {-10}
Answer: B
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Perform the indicated operations. (Remember that the order of operations is to multiply or divide from left to right.)
? 
÷ 
A. 
B. 
C. 
D. 1
Use rational equations to solve the problems.A loaded moving truck is traveling 20 mph faster than a freight train. In the time it takes the train to travel 60 miles, the truck travels 100 miles. Find the speed of the truck.
A. 20 mph B. 100 mph C. 50 mph D. 10 mph
Find the amount of sales tax or tax rate and the total cost. Round money answers to the nearest cent if necessary.Amount of sale: $200 Amount of tax: $13.00
A. 8.5%, $213.00 B. 7.5%, $213.00 C. 6.5%, $213.00 D. 0.65%, $213.00
Solve the problem.The price p and the quantity x sold of a certain product obey the demand equation: 
What is the revenue to the nearest dollar when 300 units are sold?
A. $7500 B. $52,500 C. $70,000 D. $10,000