The sum of three numbers is 142. the first number is 8 less than the second. the third number is 4 times the second. what are the numbers?

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?

Prove that 16^4-2^13-4^5 is divisible by 11.

Three consecutive integers have a sum of 234. what are the three integers