Solve the problem.Write 310 out of 500 war veterans as a reduced fraction and as a percent.
A. 
, 620%
B. 
, 620%
C. 
, 62%
D. 
, 6.2%
Answer: C
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Perform the indicated operation.
+ 
A. 
B. 
C. 
D. 
Solve.The pitch of a screw is the distance between threads. With each complete rotation of the screw, it goes in or out a distance equal to its pitch. How far will a screw with a pitch of 
in. go into a piece of wood when it is turned 10 complete rotations clockwise?
A. 
in.
B. 
in.
C. 
in.
D. 
in.
Determine two pairs of polar coordinates for the point with 0° ? ? < 360°.(-2, 2
)
A. (2, 150°), (-2
, 210°)
B. (2, 120°), (-2
, 240°)
C. (2, 30°), (-2
, 330°)
D. (2, 135°), (-2
, 315°)
Solve the problem.The cost to rent a power-wash machine from the hardware store depends on the number of hours the machine is rented. The ordered pair 
indicates that it costs $60 to rent the machine for 2 hours, and the ordered pair 
indicates that it costs $150 to rent it for 5 hours.a) Write a linear equation giving the cost, y, in terms of the number of hours x.b) Use the equation found in part a to find how much it costs to rent for 12 hours.c) How many hours could you rent for a cost of $720?
A. y = 32x; $384; 24 hours B. y = 31x; $372; 25 hours C. y = 29x; $348; 23 hours D. y = 30x; $360; 24 hours