Using three mixed numbers as side lengths, draw an equilateral triangle with a perimeter of 8/1/4 feet. show all the steps.

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

Joseph haydn pet store offers wide variety of leashes for dogs. the store purchases one popular type of leash from its manufacturer for $4.38 each. joseph haydn pets marks up leashes at a rate of 238% of cost. what is the retail price of the popular leash?

Write and solve a real word problem that involves determining distance on a coordinate plane