solve

store has sold from opening on day 1, until the end of day t. For example, f(5) = 18 means that from the day of opening until the end of day 5, the store has sold a total of 18 bikes t: f (t ) : 3 2 5 3 10 4 14 5 18 6 30 7 39 8 44 9 63 10 68 11 75 12 81 13 83 14 90 15 101 Table 1: The number of bikes sold since opening on day t = 1. (a) Find f(10). (b) Is f invertible? Why, why not? (c) Is f (14) defined? If yes, find its value and write a sentence that explains its meaning. Otherwise, explain why f-(14) is not defined. (d) Suppose g(t) is the number of bikes sold on day t. Find g(6)