Use the original price and the markdown to find the retail price. Original price: $80; Markdown: 16%

This race was first held in 1953 on august 16th. every decade the race finishes with a festival. how many years is this?

The? half-life of a radioactive substance is 20 years. if you start with some amount of this? substance, what fraction will remain in 120 ? years

The perimeter of an equilateral triangle is 4 cm more than the perimeter of a square and the length of a side of the triangle is 8 cm more than the length of a side of the aware. find the length of a side of the equilateral triangle