What is the radius and circumference and area

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

If (x-2) 2= 49, then x could be a. -9 b. -7 c.- 2 d. 5 e.9

Complete the solution of the equation. find the value of y when x equals to 6 4x+y=20