Solve the problem.The population of a particular city is increasing at a rate proportional to its size. It follows the function 
where k is a constant and t is the time in years. If the current population is 22,000, in how many years is the population expected to be 55,000? Round to the nearest year.
A. 6 yr
B. 76 yr
C. 11 yr
D. 5 yr
Answer: C
Mathematics
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Find a formula for the function graphed.
A. f(x) = 
B. f(x) = 
C. f(x) = 
D. f(x) = 
Mathematics
Find the solution set for each inequality. Graph the solution set on a number line and write it in interval notation.|8k + 1| > -8
A. 
B. 
? 
C. (-?, ?)
D. 
Mathematics
Write the inequality using interval notation. Graph the inequality.x < -5
A. (-?, -5]
B. (-?, -5)
C. [-5, ?)
D. (-5, ?)
Mathematics
Perform the indicated operation. Assume that all variables are nonnegative.20
+ 5
A. 20
+ 5
B. 25
C. 25
D. 100
Mathematics