Solve the problem.The cost for labor associated with fixing a washing machine is computed as follows: There is a fixed charge of $30 for the repairman to come to the house, to which a charge of $23 per hour is added. Find a linear equation that can be used to determine the labor cost, y, of a repair that takes x hours.
A. y = 23 + 30x
B. y = 23x - 30
C. y = 30 + 23x
D. y = 30 - 23x
Answer: C
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Solve the problem.By noting the given limits, rewrite the double integral with the order of integration reversed. 
A. 
B. 
C. 
D. 
Find the limit.
- 1
A. 1 B. -1 C. -10 D. 8
Solve the problem.The following table shows the number of fires in a county for the years 1994-1998, where 1 represents 1994, 2 represents 1995, and so on.
This data can be approximated using the third-degree polynomial T(x) = -0.51x3 + 0.51x2 + 58.38x + 4646.2.Use this function to predict the number of fires in 2003. Round to the nearest whole number.
A. 4187 B. 4771 C. 4764 D. 133
Graph the function by starting with the graph of the basic function and then using the techniques of shifting, compressing, stretching, and/or reflecting.f(x) = 2(x + 1)2 + 3
A. 
B. 
C. 
D. 