I need the steps and answer to these problems right now ! Please !

Write 17/20 as a decimal and as a percent.

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?

Grace paid $1.70 for 5 ounces of candy. how much did she pay for 24 ounces?