USF freshman expenditure is distributed normally with a mean expenditure of $45.67 and a standard deviation of $5.50. What is the probability that USF freshman expenditure is between 46 and 49.56 dollars?

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 are the solutions of the system? solve by graphing. y = -x^2 - 3x + 2 y = -2x + 2

At the electronics store you have a coupon for 20% off up to 2 cds you buy for cds with the original cost of $10.99 each the sales tax is 5% what is the total cost of your purchase