Four students did a 400 meter sprint relay. henry's time was 51.10 seconds, cathryn's time was 45.26 seconds, grayson's time was 101.92 seconds, and woody's time was 62.14 seconds. what was their total time?

Maryann’s friends loved her bulletin board, and 4 of them asked her to make one for their homes. she offered to make each of her friends a replica of her bulletin board that measures 2 meters by 3 meters. how many kilograms of burlap should maryann collect to complete the bulletin boards for her friends? maryann should collect kg of burlap.