please assist me with my daughters problems so i may verify the formulas and solutions are accurate

10- Find f(r 11. '1(2)) , where r(x)=x7 5. f(f'1(2)) = The total amount of spending per year, in billions, on pets in a certain country x years after 2000 is given by the following $ function. P(x} = 2.1781x + 25.2 a) Determine the total amount of spending per year on pets in 2007 and in 2011. b) Find P_1(x) and explain what it represents. a) The total amount of spending on pets in 2007 is about billion. {Round to one decimal place as needed.) The total amount of spending on pets in 2011 is about $ billion. {Round to one decimal place as needed.) 1 b) Find P_ (x). P "100: {Do not simplify.) What does P _1(x) represent? Choose the correct answer below. 0 A' P _ 1(x) represents the number of years after 2000 th that year. 0 B' P _ 1(x) represents the total amount of spending per) x years after 2000