A bridge that crosses a river 16 feet wide requires 4 reels of cable, 7.5 ten-foot steel rods, 3.012 pounds of
bolts, and 18.25 hours to assemble. If a bridge were to
be built across the Mississippi River (1,600 feet wide),
how much of each of the following items would be
needed: pounds of bolts, ten-foot steel rods, reels of
cable, and hours to assemble?

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?