Help please I’m so coming please help me :(

Shiny white dental insurance costs $258 per year. approximately one-third of insured people need a filling, which averages $110 each. 80% of insured people get a preventive check-up each year, and the average cost of this visit is $95. if you consider shiny white’s income and expenses, what is the expected value of each insured customer?

If the simple annual interest rate on a loan is 6, what is the interest rate in percentage per month?

Common binomial factor of 6x(3x+7)+5(3x+7)