Evaluate each expression using the variable replacements.

I’m stuck on this equation, anyone got the answer?

What is the inverse of the function f(x) = 2x + 1?

The average daily maximum temperature for laura’s hometown can be modeled by the function f(x)=4.5sin(πx/6)+11.8 , where f(x) is the temperature in °c and x is the month. x = 0 corresponds to january.what is the average daily maximum temperature in may? round to the nearest tenth of a degree if needed.use 3.14 for π .