1. Mrs. Burgos wants to buy at least 30 kilos of pork and beef for her restaurant business but can spend no more than Php 12, 000. A kilo of pork costs Php 180 and a kilo of beef costs Php 220. Give 4 possible amounts of pork and beef that Mrs. Burgos can buy.

2. Jane is buying squid balls and noodles for her friends. Each cup of noodles costs Php 15 while each stick of squid balls costs Php 10. She only has Php 70 but needs to buy at least 3 sticks of squid balls. Solve the system graphically.​​