If the length of a rectangle is given by the expression 2 V153 and the width is given by 4, 68, which rad expression represents the perimeter of the rectangle?

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

An arc subtends a central angle measuring 7pi/4 radians what fraction of the circumference is this arc?

For what values of the variable x is the expression square root of 7x+14+ square root of 7-x a real number?