Tamara gets paid an annual salary of $48,000 and earns 4% commission on all sales she makes. if tamara wants to make $6,000 this month, how much in sales does she need to have?
a. $30,000
b. $50,000
c. $100,000
d. $150,000

Given that Tamara's annual salary is $48,000 means that his monthly salary is $48,000 / 12 = $4,000. For Tamara to make $6,000 this month, she needs to make an additional $2,000 from commissions in addition to her salary. Given that she earns 4% commision on all sales, let the sale she needs to make to get $2,000 be S, then 4 / 100 x S = 2000 this gives 0.04S = 2000 giving that S = 2000 / 0.04 = 50,000. Therefore, Tamara needs to make a sales of $50,000 to be able to earn $6,000 this month.

The slope of the function is 0.5.