The number of U.S. dial-up Internet households stood at 42.5 million at the beginning of 2004 and was projected to decline at the rate of 3.9 million households per year for the next 6 years. a) Find a linear function f giving the projected U.S. dial up Internet households (in millions) in year t, where t= 0 corresponds to the beginning of 2004. b) What is the projected number of U.S. dial-up Internet households at the beginning of 2010? Bicycles suppliers will make 200 bicycles available in the market per month when the unit price is $50 and 2000 bicycles available per month when the unit price is $100. Find the supply equation if it is known to be linear.