The value of y varies directly with x^2, and y = 36 when x = 3. what is the value of y when x = 5?

The data in the table represent the height of an object over time. which model best represents the data? height of an object time (seconds) height (feet) 05 1 50 2 70 3 48 quadratic, because the height of the object increases or decreases with a multiplicative rate of change quadratic, because the height increases and then decreases exponential, because the height of the object increases or decreases with a multiplicative rate of change exponential, because the height increases and then decreases

What is best way to getting answer for my exam is

Express in the simplest form: (x^2+9x+14/x^2-49) / (3x+6/x^2+x-56)