6x -4=-4+6x
can i get some help with this question

Asocial networking site currently has 400,000 active members, and that figure is predicted to increase by 32% each year. the following expression represents the number of active members on the site after t years.

Which number produces a rationale number when multiplied by 1/5

Solve 2^x=32 and rewrite this equation in a logarithmic form