Express the ratio in its simpilest form

4: 2: 2

Which of the following best describes the graph below? a. it is a function, but it is not one-to-one. b. it is a one-to-one function. c. it is not a function. d. it is a many-to-one function.

Need ! discuss how to convert the standard form of the equation of a circle to the general form. 50 points

Find the area of the regular hexagon if a side is 20 cm.