Determine whether the given function is one-to-one. If it is one-to-one, find a formula for the inverse.f(x) = x 
A. Not one-to-one
B. f-1(x) = x2 + 3
C. f-1(x) = x 
D. f-1(x) = x3 - 3
Answer: A
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Solve the problem.Marty's Tee Shirt & Jacket Company is to produce a new line of jackets with an embroidery of a Great Pyrenees dog on the front. There are fixed costs of $560 to set up for production, and variable costs of $33 per jacket. Write an equation that can be used to determine the total cost, C(x), encountered by Marty's Company in producing x jackets.
A. C(x) = 560 - 33x B. C(x) = 560x + 33 C. C(x) = (560 + 33) x D. C(x) = 560 + 33x
Multiply.
? 
A. 
B. 
C. 21z
D. 
Check the answer. If incorrect, give the correct answer.
A. Incorrect; should be 31 R1 B. Incorrect; should be 31 C. Correct D. Incorrect; should be 30 R2
Perform the indicated operations.12 ÷ 2 ? (12 - 7)
A. 79 B. 30 C. 114 D. 65