Please help it’s timed

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?

What numbers are included in the set of integers? what numbers are not included?

Asquare and an equilateral triangle have the same perimeter. each side the triangle is 4 inches longer than each side of the square. what is the perimeter of the square