What is the answer to 2+2

Acircle has the equation (x-2)^2 +y^2 =5. what are the coordinates of the circle's center?

Jabari is power washing houses for a summer job. for every job, he charges an initial fee plus $30 for each hour of work. his total fee for a 4 -hour job, for instance, is $170 . jabari's total fee,f, for a single job is a function of the number,t, of hours it takes him to complete the job. write the function's formula.

Witch represents the inverse of the function f(x)=1/4x-12