What subsets of numbers does 8 2/3 belong to?
integers and real numbers
real and rational numbers
rational and natural numbers
whole and rational numbers

By simplifying the number given which is 8 2/3, we get an improper fraction of 26/3. Also, when we try to divide 26 by 3, we get an answer of 8.6667, with 6 as a repeating number after the decimal place. Therefore, this number is an example of real and rational number. Thus the answer is the second choice. 

7.071 feet

Step-by-step explanation:

as we know that diagonal of cuboid =

where x is length , y is height and z is breadth of cuboid.

so , diagonal length

                                   

                                    = 7.071