A washer and a dryer cost $928 combined. The washer costs $78 more than the dryer. What is the cost of the dryer?

What is the slope of the line that contains the points (4,8) and (9,8)? what type of line is it?

If 10 men take 18 days to mow 60 acres of grass, how long will 15 men take to mow 80 acres?

Aprofessional hockey team has noticed that, over the past several seasons, as the number of wins increases, the total number of hot dogs sold at the concession stands increases. the hockey team concludes that winning makes people crave hot dogs. what is wrong with the hockey team's conclusion? a) it does not take into account the attendance during each season. b) it does not take into account the number of hamburgers sold during each season. c) it does not take into account the number of concession stands in the hockey arena. d) it does not take into account the number of seasons the hockey team has been in existence.