1. A book store sells used paperbacks for $3.75 each. You recieve a $2 discount if you spend at least $36 dollars in the store. Write and solve an inequality that represents the least number of paperbacks you must buy in order to receive the discount.
2 You are mailing a 25-pound item and a 37-pound item in the same package by parcel post. THe total weight of the items and their packaging cannot be greater than 70 pounds. Write and solve an inequality that represents the heaviest the packaging can be without exceeding the 70-pound weight limit.
3. Write a two-step inqueality whose solution is x < 3.