Elvira is comparing prices between two different suppliers of fresh lettuce. Val’s Veggies charges $250 for delivery plus $1.50 per bag of lettuce. Sally’s Salads charges $100 for delivery plus $4.00 per bag of lettuce. How many bags of lettuce must be purchased for Val’s Veggies to be the cheaper option?

a. Write and solve an inequality that models this situation.

b. Describe in words the quantities that would work in this situation.

c. Write your answer in both interval and set notation.