5th grade math 15 points!!

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?

Which of the choices shown could be used to prove that aacp=abcp ?

Abag contains 4 red, 7 blue and 5 yellow marbles. event a is defined as drawing a yellow marble on the first draw and event b is defined as drawing a blue marble on the second draw. if two marbles are drawn from the bag, one after the other and not replaced, what is p(b|a) expressed in simplest form? a. 7/16 b. 7/15 c. 14/16 d. 14/15