2 1/5 x 3/4

help please? :)

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

F(n + 1) = f(n) – 8. if f(1) = 100, what is f(6)?

If f(x)=x+7 and g(x)=1/x what is (fog)(x)