Solve the problem.Linda needs to have her car towed. Little Town Auto charges a flat fee of $85 plus 
per mile towed. Write a function expressing Linda's towing cost, c, in terms of miles towed, x. Find the cost of having a car towed 4 miles.
A. c(x) = 3x + 85; $87
B. c(x) = 3x; $88
C. c(x) = 3x; $12
D. c(x) = 3x + 85; $97
Answer: D
Mathematics
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Evaluate the integral.
A. 
x + 
sin 3x + 
sin 6x + C
B. 
x + 
sin 3x + 
sin 12x + C
C. 
x + 1 sin 6x + 
sin 12x + C
D. 
x + 
sin 6x + 
sin 12x + C
Mathematics
Solve the problem. Round your answer to the nearest tenth, if necessary.Two pipes together can fill a large tank in 10 hr. One of the pipes, used alone, takes 15 hr longer than the other to fill the tank. How long would each pipe take to fill the tank alone?
A. 10 hr; 25 hr B. 15 hr; 30 hr C. 25 hr; 40 hr D. 12.5 hr; 27.5 hr
Mathematics
Rationalize the denominator.
A. -7 - 2
B. 7 - 2
C. 7 + 2
D. 2
- 7
Mathematics
Find the inverse of the matrix, if it exists.[0.4]
Fill in the blank(s) with the appropriate word(s).
Mathematics