Simplify the complex fraction using Method 1.
A. 1
B. 36
C. 
D. 
Answer: D
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Find a formula for the inverse of the function described below.An organization determines that the cost per person of chartering a bus is given by the formula 
where x is the number of people in the group and C(x) is in dollars.
A. C-1(x) = 
B. C-1(x) = 
C. C-1(x) = 
D. C-1(x) = 
Graph the function.f(x) = -2 - ln x
A. 
B. 
C. 
D. 
Choose a strategy and solve.You are planning a driving vacation, and you want to estimate the cost of the gas. While on vacation, you are planning to drive 4000 miles. Your car gets about 40 miles per gallon, and you estimate that the cost of gas is $1.82 per gallon. What is your estimate for the cost of the gasoline for the the vacation?
A. $145.60 B. $223.86 C. $182.00 D. $227.50
Determine the period of the function and sketch its graph.y = cos 
A. period: 6?
B. period: 3?
C. period: 6?
D. period: 6