please help this is due in 1 hr and i don’t get it

Question

an employee receives a weekly salary of $260 and a 4% commission on all sales

a. write a rule to describe the function f(d) that gives weekly earnings in terms of d dollars in sales

b. Find the employees earnings for a week with $1000 total sales

c. What were the employees total sales for a week in which her earnings were $740?

Answer 1

a.

f(s) = 260 + 0.04s s represents the sales amount

b.

f(s) = 260 + (0.04)(1000)

c.

740 = 260 + 0.04s