Help PLZZZ This is hard

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?

Solve this equation using substitution. {4x + y = −2} {4x + 6y = 44}

What is 1/3x5 on anuber line what does it look like on a number line