Wrens first display box is 6 inches long,9 inches wide, and 4 inches high. what is the volume of the display box

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?

In the surface area formula for cylinders which expressionrepresents the lateral area

Express in the simplest form: (x^2+9x+14/x^2-49) / (3x+6/x^2+x-56)