R/3 - 9 > -2 I need this for a test so HELP

Acoffee shop orders at most $3,500 worth of coffee and tea. the shop needs to make a profit of at least $1,900 on the order. the possible combinations of coffee and tea for this order are given by this system of inequalities, where c = pounds of coffee and t = pounds of tea: 6c + 13t ≤ 3,500 3.50c + 4t ≥ 1,900 which graph's shaded region represents the possible combinations of coffee and tea for this order?

Determine if this is a solution to the system

Factor these polynomials and explain how 1. 12x - 3x^2 2. 20 - 240x^2