I think the correct answer from the choices listed above is the last option. The transformation change of the graph of f(x) to the graph of g(x) would be that the graph of g(x) is the graph of f(x) stretched vertically by a factor of 5 and translated up 5 units.
8×12=96. Katie 12×12=144. Mary you have to Divide Katie's 96 by 8 to get 12 then take Mary's 12 and multiply it by 12 to get the answer of 144 apps that Mary owns