Show all steps please

Graded Homework Assignment #10 [3.2] Name: 7. [3 pts] The dining hall at a summer camp has round tables and rectangular tables. Each round table has space for 9 children under the age of 10, and each rectangular table can seat 12 children under the age of 10. During the weeks when all of the campers are under the age of 10, the dining hall can be set up to serve a total of 228 campers in one "seating". During the weeks when the campers are all 10 years old or older, the round tables are set up to seat 6 campers and the rectangular tables are set up to seat 9 campers, and the dining hall can only serve 162 campers in one "seating". If the same numbers of round and rectangular tables are used every week, how many of each shape are used? Let I = and SYSTEM OF EQUATIONS: Solution and check: Sentence