Solve the problem.Find the 13th pentagonal number that corresponds to the following dot sequence.
A. 169
B. 247
C. 91
D. 260
Answer: B
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A salesman earns a base salary plus a percentage of sales. The following table shows the income I, in dollars, of a salesman who has sales of d dollars. Round your answers to two decimal places, if necessary. ? d $2500 $3091 $3682 $4273 I $1515.36 $1562.64 $1609.92 $1657.2? A: Complete a table of changes to show that the data are linear.B: Find a linear model for the data.C: Explain in practical terms the meaning of the linear function in part B. Your answer should be stated in terms of base salary plus percentage of sales.
What will be an ideal response?
Graph the inverse of the function plotted, on the same set of axes. Use a dashed curve for the inverse.
A. 
B. 
C. 
D. 
Function is its own inverse.
Evaluate the factorial expression.
A. 
B. 2!
C. 42
D. 
Simplify the expression. Assume that all variables are positive when they appear.(
+ 
)(
- 
)
A. 8 - z
B. 8 - 2
C. 8 - 2
D. 8z