I have closed this thread, as it was posted in the wrong forum section. Please start a new thread in the Homework & Coursework section, under Precalculus. Be sure to include what you've tried.
Also, your notation is confusing in places. log10 means log, base 10 (or log10). What you have written as log10X probably means log10(x), but it's possible you meant log(10x), with log understood to mean log base 10.