Help me out please?

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?

What is the standard form of -5x^2+2x^4-11+x^3+3x

25 ! the line of best fit is h = 5a + 86. predict the height at age 16.