Solve the problem.In a sale, the price of a computer is reduced from $1460 to $1289. Find the discount and the rate of discount. Round the discount rate to the nearest tenth of a percent if necessary.
A. $161; 11%
B. $171; 13.3%
C. $161; 12.5%
D. $171; 11.7%
Answer: D
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Solve the problem.Delane just purchased a new fish tank that is 4 times as large as her old tank. If the old fish tank was 5 gallons 2 quarts in size, how large is the new tank?
A. 24 gallons B. 20 gallons 2 quarts C. 22 gallons 2 quarts D. 22 gallons
Multiply.-0.4 ? (-12.6)
A. 13 B. 5.04 C. -12.2 D. -13
Solve the logarithmic equation.log2(x + 7) + log2(x - 7) = 2
A. 53
B. 
C. 2
D. 50
For the polynomial, list each real zero and its multiplicity. Determine whether the graph crosses or touches the x-axis at each x -intercept.f(x) = 3(x - 7)(x + 2)3
A. 7, multiplicity 1, crosses x-axis; -2, multiplicity 3, crosses x-axis B. -7, multiplicity 1, crosses x-axis; 2, multiplicity 3, crosses x-axis C. -7, multiplicity 1, touches x-axis; 2, multiplicity 3 D. 7, multiplicity 1, touches x-axis; -2, multiplicity 3