The measures of 13 of the 14 angles of a 14−gon add up to 2,028°. What must the fourteenth angle measure be?

An architect is designing a water fountain for a park she uses the given function to model the water jet flowing from the fountain nozzles where h(x) gives the height of the water jugs in feet x feet from the starting point h(x)=-1/20x+x+15

How do i do this activity, is appreciated

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?