Log8x=2 solve for x by converting the logarithm to an exponential equation. (i already know the answer is 12.5 but i need the written steps that it takes to solve this problem in order for my answer to count.) please help1

Identify all the cases where non-probability sampling is used when attempting to study the characteristics of a large city. studies on every subject in the population divide a population in groups and obtain a sample studies with a limited amount of time demonstrate existing traits in a population studies with the nth person selected