If Greg can do a job in 6 hours, and pepper can do that same job in 5 hours, how long will it take to complete the job if they work together

Can (3,5 and square root 34) be sides on a right triangle?

Look at triangle wxy what is the length (in centimeters) of the side wy of the triangle?

The mean of 10 values is 19. if further 5 values areincluded the mean becomes 20. what is the meanthese five additional values? a) 10b) 15c) 11d) 22