Solve the problem.The logistic growth model 
represents the population of a species introduced into a new territory after t years. When will the population be 70?
A. 18.02 years
B. 5.36 years
C. 7.34 years
D. 20 years
Answer: D
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Find the derivative of the function by first expanding or simplifying the expression. f(x) = (2x - 5)(4x + 1)
A. f'(x) = 16x - 9 B. f'(x) = 16x - 22 C. f'(x) = 8x - 18 D. f'(x) = 16x - 18
Perform the indicated operation and simplify if possible.
A. 9
B. 3
C. 
D. 
Find the Social Security tax for the current pay period. Assume a 6.2% FICA rate up to a maximum of $110,000.Gross Earnings This Year: $99,405.47Current Period Earnings: $4033.67
A. $656.86 B. $12,733.05 C. $250.09 D. $260.09
Solve. If necessary, round percents to the nearest tenth, dollar amounts to the nearest cent, and all other numbers to the nearest whole.A sales tax of $20.56 is added to an item's price of $599.99. Find the sales tax rate. Round to the nearest whole percent.
A. 3% B. 29% C. 15% D. 7%