Solve.The cost C of a long-distance call varies directly as the length L of the call. If a 
call costs $0.95, what does a 30-minute call cost? Round your answer to the nearest cent.
A. $2.29
B. $2.04
C. $2.11
D. $1.99
Answer: B
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Solve the quadratic inequality. Write your answer in interval notation.x2 - 3x - 18 ? 0
A. (-?, -3] B. [6, ?) C. [-3, 6] D. (-?, -3] ? [6, ?)
Provide an appropriate response.When interest is calculated on the unpaid balance of a loan at the end of each payment period you are working with a basic installment loan.
A. True B. False
Determine whether the statement is true or false.A positive number is always greater than a negative number.
A. True B. False
As the price of a commodity decreases, what happens to supply? ?
A. If the price decreases, then the supply will increases. B. If the price decreases, then the supply will remain constant. C. If the price decreases, then the supply will decreases.