Nhà Hùng nuôi gà và heo, Hung đếm đc có tất cả 128 chân, biết rằng số chân gà gấp 4 lần chân heo, tìm chân gà ,heo

Kevin has just finished paying off his loan. he was assessed a service charge of $422. he paid off the principal and the interest by making weekly payments of $36.13 for four years. if the principal was $7,150, how much did kevin pay in finance charges, to the nearest dollar? a. $498 b. $365 c. $422 d. $787

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?

Lisa has three classes that each last 50 minutes. what is the total number of minutes of the three classes