Solve the system by graphing.3x + y = 7 x + 2y = 9
A. (1, 0)
B. (1, 4)
C. (3, -2)
D. (-1, 4)
Answer: B
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Use the distributive property to help solve the given equation.
= 5(y + 9)
A. y = 9
B. y = 11
C. y = 
D. y = 
Solve the problem.Let T be the amount of time (in seconds) it takes a baseball to fall to the ground when the ball is dropped from h feet above the ground. A good model is 
Simplify the right-hand side of the equation and determine how long it would take for a baseball to reach the ground if it were dropped from the top of a building that is 930 feet tall. Round to the nearest tenth when necessary.
A. T = 
; 232.5
B. T = 
; 7.6
C. T = 
; 15.2
D. T = 
; 1.9
Solve the equation.
?
?
A. 2, 7 B. 4, 5 C. ?1, 8 D. no solution E. -7, 2
Arrange in ascending powers of x.-7x + 15x3 - 18 + 10x7 + 17x2
A. -7x + 17x2 + 15x3 + 10x7 - 18 B. -7x7 + 15x3 - 18x2 + 10x + 17 C. 10x7 + 15x3 + 17x2 - 7x - 18 D. -18 - 7x + 17x2 + 15x3 + 10x7