Multiply and simplify.
? 
A. 
B. 
C. 
D. 
Answer: B
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Solve the system by substitution. If the system is inconsistent or dependent, say so.
A. infinite number of solutions of the equation -4x - 16y = 9; dependent system B. (8, 1) C. (0, -4) D. empty set solution; inconsistent system
Match the symbol with the answer choice that names the same set of points based on the given figure.
A. 
B. 
C. 
D. None of these
Solve the problem.Joytown has a present population of 40,000 and the population is increasing by 2.5% each year. How long will it take for the population to double? Round your answer to the nearest year.
A. 40 years B. 29 years C. 28 years D. 41 years
Solve.Find a linear function f such that f(2) = 9 and f(5) = 21.
A. f(x) = 
x + 
B. f(x) = -4x + 17
C. f(x) = - 
x + 
D. f(x) = 4x + 1