Hearthstone is a popular mobile game. Jesse is a HARDCORE, wait….LEGENDARY, Hearthstone player. During the month of March, they are having a sale on certain bundles that Jesse has been interested in for a while. The Kobolds &Catacombs card packs are selling for $2 each and the Curse of Naxxramas card packs are selling for $3 each. Jesse wants to purchase at least 15 packs between the two different sets. Additionally, Jesse can only spend at most $75 between all the packs he purchases. Finally, as stated before, Jesse is a hardcore player and he wants to ensure he has a fair chance at getting certain cards. As a result, Jesse plans to buy at least 5 packs of Kolods & Catacombs and at least 7 packs of Curse of Naxxramas. Write a system of inequalities to represent the constraints of the situation.