Which equation describes a circle with center (4, -7) and radius 9? (x - 4) + (y + 7)2 = 81
(x + 4)2 + (y – 7)2 = 9
(2 – 4)2 + (y + 7) = 9
(x +4)2 + (5 – 7)2 = 81

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.