Cole's age is 3 years less than his sister Tina's age, t. If Cole is 18, which equation represents this situation, and how old is Tina?

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?

Place the following steps in order to complete the square and solve the quadratic equation,

Is a positive integer raised to a negative power always positive