As a salesperson, you are paid $100 per week plus $3 per sale. this week you want your pay to be at least $160. write an inequality for the number of sales you need to make, and describe the solutions. a) 100 - 3s ≤ 160; s ≤ 20 b) 100 + 3s ≥ 160; s ≥ 18 c) 100 - 3s ≤ 160; s ≤ 18 d) 100 + 3s ≥ 160; s ≥ 20