6) How con-6.75 + -10.25) be expressed as the sum of is integer and decimal ports

Create a data set with 8 points in it that has a mean of approximately 10 and a standard deviation of approximately 1.

Apool measures 12.3 feet by 16.6 feet. if the longer wall of the pool has a diagonal of 17.8 feet, what is the volume of the pool? (round to nearest tenth)

I’m on question 7 it says a covered water tank is in the shape of a cylinder the tank has a 28 inch diameter and a height of 66 inches to the nearest square inch what is the surface area of the water tank