Geometry pls answer ty

What is the simplified form of 7 √x • 7 √x • 7 √x • 7 √x?

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?

Look at the following graph of the given equation. determine whether the equation is a function. explain why or why not.