Its [67;+infinity).
Hope i helped
Add all of the same numbers together then do the length times width times height. :)
Volume = height x base x length as all the sides are 2cm
volume= 2x2x2 = 8cm³
Since 5 is positive and it is one of the counting numbers, 5 is a rational, integer and natural number. 5 is not an irrational number.
Since 1/4 is a rational number, 1/4 is not an irrational number
Since 1.25 is a rational number, 1.25 is not an irrational number.
I don't know exactly what you're asking but 80% of 100 is 80
