The sum of two numbers is 52. the greater number is 4 more than the smaller number. which equation can be used to solve for the smaller number?
ox- (x + 4) = 52
x + (x + 4) = 52
x(x + 4) = 52
x(x – 4) = 52

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 simplified exponential notation, the expression a^2•a^-3•a 1/a 0

Combine like terms to make a simpler expression 3z+z