Solve the problem.The cost for labor associated with fixing a washing machine is computed as follows: There is a fixed charge of $35 for the repairman to come to the house, to which a charge of $20 per hour is added. Find an equation that can be used to determine the labor cost, C(x), of a repair that takes x hours.
A. C(x) = 35 + 20x
B. C(x) = ( 35 + 20) x
C. C(x) = 20 + 35x
D. C(x) = 35 - 20x
Answer: A
Mathematics
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Simplify.
A. x B. -1 C. -x D. 1
Mathematics
Find the absolute maximum and minimum values of the function on the given curve.Function: 
curve: 
(Use the parametric equations 
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A. Absolute maximum: 
at 
absolute minimum: 0 at 
and 
B. Absolute maximum: 
at 
absolute minimum: 0 at 
and 
C. Absolute maximum: 
at 
absolute minimum: 0 at 
and 
D. Absolute maximum: 
at 
absolute minimum: 0 at 
and 
Mathematics
Graph the function with a graphing utility.y = x2 + 2x - 7
A. 
B. 
C. 
D. 
Mathematics
Evaluate the algebraic expression.
, for m = 2
A. 
B. 
C. 
D. 
Mathematics