Solve.
log5 x + 9 = 8
A. - 
B. 125
C. -125
D. 
Answer: D
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Solve the problem.The number of traffic accidents has been decreasing in a certain county each year. The data is shown in the table for several recent years. The set of data can be approximated with a linear equation.
Find an equation of the line. Then use the equation to predict the number of traffic accidents in this county in 2021.
A. 313 accidents B. 379 accidents C. 339 accidents D. 365 accidents
Compute the compound interest.Assume the cost of a car is $23,000. With continuous compounding in effect,find the number of years it would take to double the cost of the car at an annual inflation rate of 6.4%. Round the answer to the nearest hundredth.
A. 167.76 yr B. 156.93 yr C. 10.83 yr D. 1.57 yr
Factor completely. If the polynomial is prime, say so.64x2 - 80xy + 25y2
A. (5x - 8y)2 B. (8x - y)2 C. Prime D. (5x + 8y)2
Factor the trinomial.y2 - 10y + 16
A. (y - 16)(y - 1) B. (y + 8)(y + 2) C. (y - 8)(y + 2) D. (y - 8)(y - 2)