Solve the equation algebraically. Verify your solution with a graphing utility.5(2x - 4) = 9(x + 4)
A. {-56}
B. {56}
C. {-16}
D. {21}
Answer: B
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Solve.If the population of a certain country doubles in 9.37 years, find the growth rate k. Assume that the population increases exponentially.
A. 5.7% B. 3.1% C. 8.2% D. 7.4%
Solve the equation for the indicated variable.q - 8x = 7q + 5 for q
A. 
B. 
C. 2.16666667
D. 
Solve the problem.There were 610 people at a play. The admission price was $3.00 for adults and $1.00 for children. The admission receipts were $1230. How many adults and children attended?
A. 307 adults and 303 children B. 300 adults and 310 children C. 310 adults and 300 children D. 150 adults and 460 children
Solve the problem.A car rental company has two rental rates. Rate 1 is 
per day plus 
per mile. Rate 2 is 
per day plus 
per mile. If you plan to rent for one day, how many miles would you need to drive to pay less by taking Rate 2?
A. more than 700 miles B. more than 800 miles C. more than 1400 miles D. more than 350 miles