Based on the diagram below find the measure of angles 3 and 4

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?

Aline on the wall and a line on the floor are skew. always, sometimes, or never?

What is the first step of an indirect proof of a number that is divisible by two