Solve by using the percent proportion 
= 
.What percent of 16 is 20?
A. 
= 
; p = 80
B. 
= 
; p = 125
C. 
= 
; a = 12.5
D. 
= 
; b = 1.25
Answer: B
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Find a parametrization for the line segment beginning at P1 and ending at P2.P1(-3, 0, 5) and P2(0, -3, 0)
A. x = 3t - 3, y = -3t, z = -5t + 5, 0 ? t ? 1 B. x = 4t, y = 4t - 3, z = -4t, 0 ? t ? 1 C. x = -3t, y = 3t - 3, z = 5t, 0 ? t ? 1 D. x = 4t - 3, y = 4t, z = -4t + 5, 0 ? t ? 1
Solve.How long will it take for prices in the economy to double at a 5% annual inflation rate? Use the exponential growth model 
(Round to the nearest year.)
A. 12 yr B. 23 yr C. 14 yr D. 17 yr
Solve the problem.The average waiting time in a line before getting served is given by ?W = 
where A is the average rate that people arrive at the line and S is the average service time. At a certain bank, the average service time is 4 minutes. By sketching a graph of the equation on the interval 
answer the following questions. What happens to W when A is close to zero? Why does this make sense? What feature of your graph gives this information?
What will be an ideal response?
Evaluate the expression.(9 - 82)(-8 + 
)
A. 73 B. -47 C. -55 D. -4895