Mary and her brother john collect foreign coins. mary has three times the number of coins that john has. together they have 180 foreign coins. find how many coins mary has. 45 coins 126 coins 135 coins 17 coins

Anew landowner is interested in constructing a fence around the perimeter of her property. her property is 1,080√30 feet wide and 500√20 feet long. what is the perimeter of the property? (recall that the perimeter is the sum of each side of a shape or boundary). a 1,580√40 feet b. 5,320√5 feet c. 3,160√20 feet d. 10,640√5 feet