Bill was just offered a sales position for a computer company. His salary would be $25,000 per year plus 1% of his total annual sales. 

(a) Find a linear function that relates Bill’s annual salary, S, to his total annual sales, x. 

(b) If Bill’s total annual sales were $1,000,000, what would be Bill’s salary? 

(c) What would Bill have to sell to earn $100,000? 

(d) Determine the sales required of Bill for his salary to exceed $150,000.