3x2 + 5x + 7 = 0.
what's the discriminant

At a sale this week, a desk is being sold for $213. this is a 29% discount from the original price. what is the original price?

Find the coordinates of point x that lies along the directed line segment from y(-8, 8) to t(-15, -13) and partitions the segment in the ratio of 5: 2.

Iknow its nothing to do with education, but what type of thing should i wrote here? ? : ) its for mcdonald's btw.