1) which set of ordered pairs in the form of (x, y) does not represent a function of x?
a) {(0,,-,,-2)}
b) {(0,-,,,-2)}
c) {(0,,-,-,2)}
d) {(0,,,-,2)}

How do i do this activity, is appreciated

What’s the answer ? use the picture to see the problem

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?