help pls

Kevin is a computer-savy millennial. He started his own business of providing computer cleaning and minor repairs to people in the community for $29 per one-hour session. Other than having to pay $175 per year for a software license that helps him identify the issues on each device, his only other out-of-pocket cost is fuel to transport him to meetings with clients-about $4 per session. Kevin would like to make $3,150 so he can pay off his car loan and save for a much-needed trip. Kevin is also thinking about paying for local online advertising to grow his business. A one year ad will cont S45a (c1) How many additional sessions would he need to sell in order to just cover this cost on an before-tax basis? Number of sessions sessions (c2) In your opinion, would this advertising be worth it? The advertising cost worth it