Brainliest ! a quadratic equation is show below: 9x^2 - 16x + 60 = 0 part a: describe the solution(s) to the equation by just determining the radicand. show your work. part b: solve 4x^2 + 8x - 5 = 0 by using an appropriate method. show the steps of your work, and explain why you chose the method used.

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?