Find the product.-7x6(9x + 12)
A. -63x7 - 84x6
B. -63x - 84
C. -147x6
D. -63x7 + 12
Answer: A
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Use the elimination method to solve the system.4x + 2y = 197x - 2y = 19.5
A. (3.5, 3) B. (3.5, 2.5) C. (2.5, 3.5) D. (4, 2.5)
Solve the problem.If f(x) = 
, g(x) = 
, and h(x) = 2x+ 8, find h(g(f(x))).
A. 
B. 
+ 8
C. 
+ 4
D. 2
+ 8
Interpret the linear equation.When a tow truck is called, the cost of the service is given by the linear function 
, where y is in dollars and x is the number of miles the car is towed. Find and interpret the slope and y-intercept of the linear equation.
A. m = 40; The number of miles the car is towed increases 40 miles for every dollar spent on the service. b = 3; The tow truck will tow the car 3 miles for no cost. B. m = 40; The cost of the service increases $40 every mile the car is towed. b = 3; The cost of the service is $3 if the car is not towed. C. m = 3; The cost of the service increases $3 every mile the car is towed. b = 40; The cost of the service is $40 if the car is not towed. D. m = 3; The number of miles the car is towed increases 3 miles for every dollar spent on the service. b = 40; The tow truck will tow the car 40 miles for no cost.
Find the exact perimeter. Then approximate your answer to the nearest tenth.
A. 22
, 53.9
B. 26
, 63.7
C. 9
, 22.0
D. 13
, 31.8