The mean of a set of 5 numbers is 39 and the median is 40. if the mean of the largest two numbers is 49 , then what is the sum of the smallest two?

Mr and mrs smith buy tickets for themselves and their four children. the cost of an adult ticket is ? 6 more than the adult ticket. the total cost of the six tickets is ? 40.50 work out the cost of an adult ticket. in your working let c be the cost of the child ticket and a be the cost of the adult ticket.

The number of potato chips in a bag is normally distributed with a mean of 71 and a standard deviation of 2. approximately what percent of bags contain between 69 and 73 potato chips? approximately 68% approximately 71% approximately 95% approximately 99.7%

The lines shown below are parallel. if the green line has a slope of -1, what is the slope of the red line?