A town is experiencing a growth pattern of 8% per year in its population P; that is dP / dt =0.08P, where P is the population of the town and t is the time, in years, from 2005.
(a) Given that the town’s population in 2005 was 400,
find the solution of the equation assuming 
= 400
and k = 0.08.
(b) What will the population be in 2015?
(c) What is the doubling time of the population?
(a) 
(b) 890
(c) 8.7 yr
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Solve the system by the addition method. If there is no solution or an infinite number of solutions, so state. Use set notation to express the solution set.
A. {(2, -2)}
B. {(-2, 2)}
C. no solution; ?
D. infinitely many solutions; 
or 
Solve the inequality. Write the solution set in interval notation.
? 
- 
A. [-2, ?)
B. 
C. (-?, -2]
D. (-?, 2]
Use an Euler diagram to determine whether the syllogism is valid or invalid.Some investments are risky.Real estate is an investment.? Real estate is risky.
A. Valid B. Invalid
Divide.
A. 0.6 B. 1.6 C. 16 D. 6