Someone came into my shop and stole $100 from the register without my knowledge, the same person came back with the $100 five mins later and bought $70 in items and i gave him back $30 in change. how much money did i lose?

Tatiana wants to give friendship bracelets to her 32 classmates. she already has 5 bracelets, and she can buy more bracelets in packages of 4. write an inequality to determine the number of packages, p, tatiana could buy to have enough bracelets.