x+1/x=2.5. What is x? (If you find multiple answers, separate them with a comma).
1 point
Your answer
You double the length and the width of a rectangle. How many times as large as the original is the area of the new rectangle? (Enter the numerical value only).
1 point
Your answer
A square has the area of 121 cm^2. What is the length of the side of the square? (State only the numerical value as your answer).