What is the value of x in the simplest radical form?

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 volume of this container?

How can you find the magnitude of a vector, v = < x, y > , where the horizontal change is x and the vertical change is y?