Express X in terms of Y for the equation Y equals 2X +3÷2 from the value of X when Y equals -13

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?

If olu is twice as old as funmi if the sum of their ages is 60 how old is olu

What is the result of adding the system of equations? 2x+y=4 3x-y=6