As a salesperson, you are paid $50 per week plus $3 per sale. This week you want your pay to be at least $110. What is the minimum number of sales you must make to earn at least $110?
so 50 per week+3 times number of sales represent s as number of sales pay=50+3s if you want pay to be at least 110 or pay<110 so 110>pay=50+3s 110>50+3s treat as regular equation: do the saem to both sides so it will stay equal also isolate the s term
110>50+3s subtract 50 from both sides 60>3s divide both sides by 3 20>s you must make at least 20 sales
