Emil's backpack weighs 6 3/8 pounds. he removes a book that weighs 3/4 pounds. then he removed a book that weighs 1/2 pound. how much emil's backpack weigh now? in the simplest form

In the diagram, be and ad pass throughthe center of circle o, and the area ofsector aoc is 47.45 square units. what isthe area of sector boc? use the value =3.14, and round your answer to two decimalplaces.22.33 square units25.12 square units