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Fashionation launched an advertising campaign to increase the number of monthly subscribers to their online fashion magazine. Management expects the number of monthly subscriptions to grow at the rate of r(t) = 30Vt subscribers per month, where t is the number of months since the advertising campaign began. Phase 1 of the campaign lasts 4 months and the magazine finds that it has 26,760 monthly subscribers at the end of 4 months. (part a - 14 pts) Find the function F(t) that will give the number of monthly subscribers t months into the advertising campaign. F(t) = (part b - 6 pts) Fashionation decides to extend the campaign into a Phase 2 that will last for an additional 12 months. They have a contract with an advertising firm that will pay 25 cents (or, $0.25 ) for each monthly subscriber at the end of Phase 2. Use this information and the model above to complete the following sentence. Including both Phase 1 and Phase 2, the advertising campaign will last for a total of months. At the end of the campaign, the number of monthly subscribers will be This means the campaign will generate ( include units ) in ad revenue for the station