\f11. The number of cellular phones in use in the United States is increasing exponentially. The number, N. in millions, in use is given by the exponential function N(t) = 0.03(1.4477). where "t is the number of years after 1985. (Source: Cellular Telecommunications and Internet Association) Find N(15) and explain its meaning in the context of the scenario. b. Find t when N(t) = 234 and explain its meaning in the context of the scenario. Explain the meaning of the value 1.4477 (from the equation) in the context of the scenario. 12) Use your calculator's graphing feature to solve 2 = 2x + 12 Explain how you used your calculator and reproduce any tables or graphs produced by your calculatorAn initial investment of $5000 earns 8.8% interest, compounded continuously. What will the investment be worth in 12 years? Please round the answer to the nearest cent. S 2. If $500 is deposited in an account paying 8.3% annual interest, compounded continuously, how long will it take for the account to increase to $850? Please round the answer to the nearest tenth. years 3. Write an equation in slope-intercept form of the line that passes through ( -4, 4) and (2, -7)