Assignment:
Q1: Solve the logarithm equation: 3 ln 5x=10
Q2: Solve the exponential equation: 80e^-t/2 +20=70
Q3: Use the definition of a logarithm to write the equation in logarithm form. (For instance, the logarithm form of 23 = 8 is log28 = 3.) 93/2 = 27.
Q4: Evaluate the expression without a calculator: log10100
Q5: Write the logarithm in terms of common logarithms: ln (xy/z)
Provide complete and step by step solution for the question and show calculations and use formulas.