Find the coordinates of the midpoint of the line segment PQ.P(y, z), Q(z, y)
A. (y + z, y + z)
B. 
C. (yz, yz)
D. 
Answer: B
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Solve.A machinist who had been producing 50 parts per day increased output to 85 parts per day by using a faster machine. How many times faster is the new machine? Express your answer as a mixed number.
A. 1
times faster
B. 2
times faster
C. 2
times faster
D. 1
times faster
Solve the problem.Hsien-Ta doesn't trust banks, so his savings are hidden under his mattress. Emilia has her savings in an investment at simple interest. In approximately what year did they have the same amount?
A. 1989 B. 1986 C. 1988 D. 1996
Write as a decimal.365%
A. 36.5 B. 3.66 C. 3.65 D. 0.365
Factor completely. If a polynomial cannot be factored, say it is prime.18y2 + 81y - 45
A. (18y - 9)(y + 5) B. prime C. 9(2y - 1)(y + 5) D. 9(2y + 1)(y - 5)