Pls answer me this all question correctly pls I beg you pls friends pls pls pls pls​

Suppose the radius of a circle is 16. what issuppose the radius of a circle is 16. what is its circumference its circumference

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

Write an expression that has three terms and simplifies to 4x - 7. identify the coefficient(s) and constant(s) in your expression