What is 60 percent of 75? how do i get the answer

The radical equation 2+√2x-3 = √x+7 has a solution set [x= a0} and an extraneous root x = a1.

Two numbers have a sum of -19. one number is x. what expression represents the other number?

The width of a rectangle is half as long as the length. the rectangle has an area of 18 square feet. what are the length and width of the rectangle?