Tamara earns her living as a salary plus commission employee. Her annual salary is $48,000, and she earns 4% commission on all sales she makes. If Tamara wants to make a total of $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 Please select the best answer from the choices provided