Gap'o has projected sales of 650000 hospital gowns in october.each gown requires 2.5 yards of fabric. thebeginning inventory of fabric and gowns, respectively are 10000 yards and 42000 gowns. gap'o wants to have 9100 yards of fabric and 31600 gowns on hand at the end of october. the fabric comes in 15 yards bolts. if gap'o has no beginning or ending work in progress inventory, how many bolts of fabric must the company purchase in october?
show that if 1-ab is invertible in a ring with 1 then so is 1-ba
