As a salesperson, you are paid $50 per week plus $2 per sale. This week you want your pay to be at least $100. What is the minimum number of sales you must make to earn at least $100?

Respuesta :

2x + 50 > = 100 (thats greater then or equal)
2x > = 100 - 50
2x > = 50
x > = 50/2
x > = 25

minimum number is 25