Solve: 16x^2 − 80 = 0 using the quadratic formula
round the answer to the nearest hundredth.
x = −0.45 and x = 0.45
x = −2.24 and x = 2.24
x = −8.94 and x = 8.94
x = −9.80 and x = 9.80

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?