Write exponential notation.8 ? 8 ? 8
A. 81
B. 83
C. 3 ? 8
D. 38
Answer: B
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Graph the inequality.x > 8 
A. 
B. 
C. 
D. 
Use properties of logarithms to condense the logarithmic expression. Write the expression as a single logarithm whose coefficient is 1. Where possible, evaluate logarithmic expressions.5 log x + 2 log y
A. 7 log(xy) B. log(xy)7 C. 10 log(xy) D. log(x5y2)
Solve the problem.A cellular phone plan had the following schedule of charges:Basic service, including 100 minutes of calls$20.00 per month2nd 100 minutes of calls$0.075 per minuteAdditional minutes of calls$0.10 per minuteWhat is the charge for 200 minutes of calls in one month?What is the charge for 250 minutes of calls in one month?Construct a function that relates the monthly charge C for x minutes of calls.
What will be an ideal response?
Solve the problem.The charges for renting a moving van are $65 for the first 30 miles and $7 for each additional mile. Assume that a fraction of a mile is rounded up. Find a symbolic representation for a function f that computes the cost of driving the van x miles, where 
(Hint: express f as a piecewise-constant function.) Then, determine the cost of driving the van 98 miles.
A. f(x) = 
; $6846
B. f(x) = 
; $541
C. f(x) = 
; $961
D. f(x) = 
; $961