What digit(s) can be in the ones place of a
number that has 5 as a factor?

Alex drew a circle with right triangle prq inscribed in it, as shown below: the figure shows a circle with points p, q, and r on it forming an inscribed triangle. side pq is a chord through the center and angle r is a right angle. arc qr measures 80 degrees.

Which function has the same domain as y=2x

Determine whether the set of whole numbers is closed under addition. explain why the set is or is not closed. give an example.