Use the fundamental identities to find the value of the trigonometric function.Find cot ?, given that csc ? = - 
and ? is in quadrant III.
A. - 
B. 
C. - 
D. - 
Answer: B
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Graph.25x2 - 4y2 = 100
A. 
B. 
C. 
D. 
Solve the problem.For every 100 shoppers in a bookstore, $603 dollars worth of books are sold. Express the number of dollars spent per shopper as a whole or mixed number.
A. 6
B. 6
C. 6
D. 5
Solve the problem.To remodel a bathroom, a contractor charges $25 per hour plus material costs, which amount to $3625. Therefore, the total cost to remodel the bathroom is given by 
where x is the number of hours the contractor works. Find 
What does 
compute?
A. f -1(x) = 
- 3625; This computes the number of hours worked if the total cost is x dollars.
B. f -1(x) = 
- 3625; This computes the total cost if the contractor works x hours.
C. f -1(x) = 
- 145; This computes the number of hours worked if the total cost is x dollars.
D. f -1(x) = 
- 145; This computes the total cost if the contractor works x hours.
Write as a percent. Round your answer to the nearest tenth, if necessary.
A. 24.7% B. 2.2% C. 22.2% D. 90%