If there is a circle centered at the origin with a radius of 2, what would be the equation of that circle?

Given f(x) = 2x^2- 5x+1, determine the function value f(2). do not f(x) = in your answer

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.

Inez has a phone card. the graph shows the number of minutes that remain on her phone card a certain number of days.