You design a new app for cell phones. Your revenue for x downloads is given by f(x) = 3x Your profit is $20 less than 70% of the revenue for x downloads. Create a function p to model the
profit. Find the profit for 100 downloads.
A) p(x) = 0.7. f(x) - 20, p(x) = 230
B) p(x) - 0.7•(x) + 20, p(x) = 190
C) p(x) = 0.7• f(x) +20, p(x) = 230
D) p(x) = 0.7•f(x) - 20, p(x) = 190