Express as a single logarithm and, if possible, simplify.logb a - logb y
A. log2b 
B. logb a - y
C. logb 
D. logb 
Answer: C
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The following table shows the population of a city in the given year.
19701980199020002010
12921338180619382036?
Use averaging to estimate the population in 2005. Round your answer to the nearest whole number.
A. 2956 people B. 1987 people C. 1943 people D. None of the above
Solve the problem.Use the formula N = Iekt, where N is the number of items in terms of the initial population I, at time t, and k is the growth constant equal to the percent of growth per unit of time. A certain radioactive isotope decays at a rate of 0.2% annually. Determine the half-life of this isotope, to the nearest year.
A. 347 years B. 3 years C. 250 years D. 151 years
Graph the equations.f(x) = 
- 9
A. 
B. 
C. 
D. 
Solve the problem.Tasha borrowed $13,000 to purchase a new car at an annual interest rate of 9%. She is to pay it back in equal monthly payments over a 5 year period. How much total interest will be paid over the period of the loan? Round to the nearest dollar.
A. $3192 B. $1457 C. $98 D. $4145