how many numbers did bill wrote if he wrote all the natural numbers between w and v not including w and v

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?

Aperpendicular bisector, cd is drawn through point con ab if the coordinates of point a are (-3, 2) and the coordinates of point b are (7,6), the x-intercept of cd is point lies on cd.

1) what is the measure of the exterior angle, ∠uvw ? 2) in triangle man, what is the measure of the exterior angle at n (in degrees)?