Solve the problem.The formula A = 117e0.023t models the population of a particular city, in thousands, t years after 1998. When will the population of the city reach 165 thousand?
A. 2016
B. 2013
C. 2015
D. 2014
Answer: B
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Solve the problem. Assume that the minimum payment on a credit card is the greater of $27 or 3% of the unpaid balance.If the annual interest rate is 15.99%, find the difference between the minimum payment and the interest owed on an unpaid balance of $728.97 that is 1 month overdue.
A. $17.29 B. $12.76 C. $12.22 D. $14.29
Solve by graphing.The cost y (in dollars) of car rental is related to the number of miles driven x and is approximated by the linear equation y = 0.25x + 8. Graph the equation and use the graph to estimate to the nearest whole dollar the cost of car rental if the number of miles driven is 24. 
A. $19 B. $14 C. $10 D. $26
Determine whether the equation defines y as a function of x. x = y2
A. function B. not a function
Find the x-intercepts of the polynomial function. State whether the graph crosses the x-axis, or touches the x-axis and turns around, at each intercept. x5 - 21x3 + 80x = 0
A. 0, crosses the x-axis;
4, crosses the x-axis;
-4, crosses the x-axis;
, crosses the x-axis;
-
, crosses the x-axis
B. 0, crosses the x-axis;
16, touches the x-axis and turns around;
5, touches the x-axis and turns around
C. 0, touches the x-axis and turns around;
16, touches the x-axis and turns around;
5, touches the x-axis and turns around
D. 0, touches the x-axis and turns around;
4, crosses the x-axis;
-4, crosses the x-axis;
, crosses the x-axis;
-
, crosses the x-axis