A fast train , known as a bullet train , travels at an average speed of 163 miles per hour . The equation below shows the relationship between d , the number of miles the train travels , and t , the number of hours it travels . d = 163t

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?