Solve the problem.One of Sal's customers ordered items costing 
and 
If Sal's commission on each item is 
what is his total commission on this sale? Round your answer to the nearest cent.
A. $11.98
B. $16.60
C. $13.57
D. $19.09
Answer: D
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Use the shell method to find the volume of the solid generated by revolving the region bounded by the given curves and lines about the x-axis.x = 6e- y2, y = 0, x = 0, y = 1
A. 12
?
B. 6
?
C. 6(e - 1) ?
D. 12
?
Solve the problem.The table contains data that can be modeled by an exponential function of the form 
Use regression to determine an exponential function f that models this data. Round the coefficients to the nearest hundredth.
A. f(x) = (1.32)(5.97)x B. f(x) = (1.78)(1.63)x C. f(x) = (5.97)(1.32)x D. f(x) = (1.63)(1.78)x
Convert to radical notation and simplify.x3/10
A. x
B. 
C. 
D. 
Solve the problem.Two trains leave a train station at the same time. One travels east at 10 miles per hour. The other train travels west at 8 miles per hour. In how many hours will the two trains be 153 miles apart?
A. 8.5 hr B. 4.3 hr C. 9 hr D. 17 hr