Find the unknown number in the proportion. Write your answer as a whole number or a mixed number if possible.
= 
A. x = 4
B. x = 4
C. x = 
D. x = 5
Answer: B
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Suppose 
is an exponential function with growth factor 
. Find the equation of change for f.
?
A. 
B. 
C. 
D. 
Solve the problem.Each bank teller at Bank4U is first given a 7% cost-of-living raise and then a $1650 merit raise. Write a function that transforms each old salary x into a new salary N(x). Does it make any difference in which order these raises are given? Explain.
A. N(x) = 1.07x + 1650; Yes, because 7% of the current salary, x, is less than 7% of the sum of $1650 and the current salary, (1650 + x). B. N(x) = 1.07(1650 + x); No, they would be the same amounts either way. C. N(x) = 0.07(1650 + x); Yes, because 7% of the current salary, x, is less than 7% of the sum of $1650 and the current salary, (1650 + x). D. N(x) = 0.07x + 1650; Yes, because 7% of the current salary, x, is less than 7% of the sum of $1650 and the current salary, (1650 + x).
Find functions f and g so that f ? g = H.H(x) = 
A.
| f(x) = 5; | g(x) =  |
B.
f(x) =  ; | g(x) = 5x + 1 |
C.
f(x) =  ; | g(x) = 5 |
D.
f(x) =  ; | g(x) = 5x + 1 |
Graph the function.f(x) = 
A. 
B. 
C. 
D. 