Use the commutative and associative properties to simplify the expression.
A. t
B. 
t
C. 
t
D. 
t
Answer: A
Mathematics
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Solve by the method of elimination by substitution. x + 9y = 62-4x + 9y = 67
A. x = -1, y = 7 B. x = 1, y = 6 C. x = 0, y = 6 D. Inconsistent
Mathematics
Choose the graph that represents the given function without using a graphing utility.f(x) = 
A. 
B. 
C. 
D. 
Mathematics
Multiply and simplify.
? 
A. 5xy2
B. 5xy
C. xy
D. 5x2y2
Mathematics
Solve the problem.A retailer knows that n games can be sold in a month if the price is 
dollars per game. If he buys each game for $14, and if he wishes to make a profit of at least 
per month on sales of this game, how many games must he sell each month?
A. 30 ? n ? 50 B. 30 ? n ? 80 C. 25 ? n ? 40 D. 25 ? n ? 30
Mathematics