A tent for camping was originally priced at $150, but is now on sale for $120. By what percentage was the price of the tent reduced?

Asequence is a function whose is the set of natural numbers

Asource of laser light sends rays ab and ac toward two opposite walls of a hall. the light rays strike the walls at points b and c, as shown below: what is the distance between the walls?

What is the slope of the line passing through the points (-5, 7) and (-3,5)?