4. After buying some lemons at rate of 5 for Rs.1 and sold them at the rate of 4 for Rs 1. find the profit or loss percent.​

Factor the expression using the gcf. the expression 21m−49n factored using the gcf

The letters g e o r g i a are placed in a bag . if you picked a card and knew it was a vowel , what is the probability that it is an a ?

What is the perimeter of an equilateral triangle if each side is (x+3)?