0 Skills and Applications Writing an Exponential Equation In Exercises 7-10, write the logarithmic equation in exponential form. For example, the exponential form of log, 25 = 2 is 5 = 25. 7. log4 16 2 e. 1 Writing a Logarithmic Equation In Exercises 11-14, write the exponential equation in logarithmic form. For example, the logarithmic form of 23 = 8 is log 8 = 3. 1. 13. 4-3 = Evaluating a Logarithm In Exercises 15-20, evaluate the logarithm at the given value of x without using a calculator. Function 15. f(x) = log x 4 16. f(x) = log25x 9 17. f(x)=log x 18 19. g(x) logbx 2 20. g(x) loga x Value x = 64 x = 5 x = 10 X = * x= b x = a-