The number of hospital visits that Mr. Patrick has had is proportional to the number of bicycle crashes he's participated in. The table below expresses this relationship. Crashes Hospital Visits

4 3

12 9

20 15

C 27

Find the value of C.

What is the slope of the line that passes through the points (–9, 2) and (0, 4)? the slope of the line is

16x^2-16x=5 solve the equation by completing the square

The salesperson earns a 5% commission on the first $5,000 she has in sales. the salesperson earns a 7.5% commission on the amount of her sales that are greater than $5,000. this month the sales person had $8,000 in sales. what amount of commission, in dollars, did she earn?