1. Ryan works at an appliance store on commission. He receives a weekly salary of $450 plus 5% of any merchandise he sells.
a. Write a function that gives his gross wages, W, in terms of his total sales in dollars, x.
b. How much will he earn if he sells $5000 in merchandise in a week?
c. How much does he have to sell to earn $1500?
2. The percent of Americans who smoke can be modeled by the function S(t)=-0.59t + 42.28 where t represents the number of years since 1965. Determine the years for which the percent of Americans who smoke is less than 15%.