How to transform radical into exponential form? Working backwards. How do you get 3 squared from 9?

Asquare is dilated by a scale factor of 1.25 to create a new square. how does the area of the new square compare with the area of the original square? a)the area of the new square is 1.25 times the area of the original square. b)the area of the new square is 2.50 times the area of the original square. c)the area of the new square is 1.252 times the area of the original square. d)the area of the new square is 1.253 times the area of the original square.

If 20% of a number is 35, what is 50% of that number?

Solve the equation by completing the square. x^2+2x=17