Identify the variable factors and indicate the degree.8xy
A. x ? y; degree 8
B. x ? y; degree 1
C. 8 ? x ? y; degree 2
D. x ? y; degree 2
Answer: D
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Convert to percent.6
A. 60% B. 0.06% C. 600% D. 0.6%
Solve the problem.Paul has grades of 74 and 80 on his first two tests. What must he score on his third test in order to have an average of at least 80?
A. at most 78 B. at most 80 C. at least 86 D. at least 77
Simplify the expression. Assume that all variables are positive when they appear.
A. 1
B. 
C. 
D. 
Solve the problem.The graph below shows the height, in feet, of a ball thrown straight up with an initial speed of 96 feet per second from an initial height of 112 feet after t seconds. 
At what time does the ball hit the ground? How do you know?
A. 1 second; 200 feet B. 7 seconds; height = 0 feet C. 6 seconds; 125 feet D. 5 seconds; 200 feet