The correct answer is 9.5 feet.
It is x + (4/5) = 11
It is this because of PEMDAS, if you learned that.
So this in the exponential form of ab^x, where a is the y intercept, b is the growth factor(base) and x is your domain. From this, we can answer each question. The initial amount is 800, growth rate is 32% and factor is 1.32.
Happy learning!