Pg. 157: 2,5,20,24,25

Section 4.2 # 2 - Find when population will double if growing at rate of 26% per year.	Section 4.2 # 5 - Find ½ life for Tritium decaying at a rate of 5.471% per year.
Section 4.2 # 20 - Find annual and continuous growth rate Given: (0, 11000) and (3, 13000) (a) Annual rate: Solve for r get: Annual rate is 5.7264% (b) Continuous rate: Solve for k get: Continuous rate is 5.5685% (c) Continuous rate is less since the function grows faster	Section 4.2 # 24 - Give an exact solution if there is one for Take logs of both side
Section 4.2 # 25 - Give an exact solution if there is one for Take logs of both sides or Since log x = y if 10y = x, then