What is the independent and dependent variable in this statement, types of pizza or number of votes

The long jump record, in feet, at a particular school can be modeled by f(x) = 19.6 + 2.5ln(x + 1) where x is the number of years since records began to be kept at the school. what is the record for the long jump 11 years after record started being kept? round your answer to the nearest tenth.

Given the function f(x) = log base 4(x+8) , find the value of f^-1(2)

In the diagram below, tan θ = sqrt 3. what is the value of m?