Slope of a line that goes through 0,5 and 8,2

Which graph represents the solution of the inequality?

Jackie purchased 3 bottles of water and 2 cups of coffee for a family for $7.35. brian bought 4 bottles of water and 1 cup of coffee for his family for $7.15. how much does each bottle of water cost? how much does each cup of coffee cost? i need this done

What is the value of m in the equation 1/2 m - 3/4n=16 when n=8