a) The cost of first-class postage stamp was 3c in 1962 and 30& in 2010 . This increase represents exponential growth. Write the function S for the cost of a stamp t years after 1962(t=0). b) What was the growth rate in the cost? c) Predict the cost of a first-class postage stamp in 2018,2021, and 2024 d) The Forever Stamp is always valid as first-class postage on standard envelopes weighing 1 ounce or less. regardless of any subsequent increases in the first-class rate. An advertising firm spent $3000 on 10,000 first-class postage stamps in 2009. Knowing it will need 10,000 first-class stamps in each of the years 2010-2025, it decides at the beginning of 2010 to try to save money by spending $3000 on 10,000 Forever Stamps, but also buying enough of the stamps to cover the years 2011 through 2025. Assuming there is a postage increase in each of the