Can you take a look at these 3 problems?
1. a carpentry shop makes dinner tables and coffee tables. each week the shop must complete at least 9 dinner tables and 13 coffee tables to be shippeed to furniture stores. the shop can produce at most 30 dinner tables and coffee tables combined each week. if the shop sells dinner tables for $120 and coffee tables for $150, how many of each item should be produced for a maximum weekly income? what is the maximum weekly income?