Pls help...I hate 6 grade math

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?

Which point lies on a circle with a radius of 5 units and center at p(6, 1)?

If rt is greater than ba, which statement must be true ?