I need help please help me because I know the answer but I need to explain it and I don’t know how to. What is 3.99 x 3.3

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 diagram, gef and hef are congruent. what is the value of x

Which of the following will form the composite function?