For spring cleanups, a landscaper charges a flat fee of $60 plus $20 for each hour of labor. Which equation models the cost in dollars, c, for a cleanup that requires h hours of labor? c = StartFraction h Over 20 EndFraction + 60
c = StartFraction 20 Over h EndFraction + 60
c = 20 h + 60
c = 20 + 60 h

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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 properties allow transformation to be used as a problem solving tool