Answer:
It has no perfect square factors, unless you count 1 = 1^2. That's sort of a degenerate case we don't usually count, since every integer has that factor. We would usually say that 1290 is a square-free integer. Hope this helps!!
Answer:
where is the question please
3 fourths of an hour is : (3/4)
(3/4)*4=3 hours
hope this helps!
