Can someone explain this

Unc special program for high school students that pays them three $300 for joining and an additional $200 per week h& m pay students in according to the function y equals 300+240 x where why is the total paint and x is the number of weeks but love your peas students according to this graph primark uses the pay schedule according to the following table which stores pay has the greatest rate of change

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

Gabrielle's age is two times mikhail's age. the sum of their ages is 84. what is mikhail's age?