Chapter 7 - Exponents and Exponential Functions - 7-7 Exponential Growth and Decay - Practice and Problem-Solving Exercises - Page 459: 13

a) 15000 b) $1 + .04 = 1.04$ c) 1.04 d) $y = 15000 * 1.04^x$ e) 39988 students

a) The initial amount is the current population. b) $1+ .04 = 1.04$ c) $15000 * 1.04$ d) After $x$ years, there would be $15000 * 1.04^x$ students. e) $y = 15000 * 1.04^25$ $y = 15000 * 2.665836$ $y = 39988$ students