If frank ordered 250 cds for his music store. if 75 of the cds arrived scratched, what percent of his order will frank be able to sell?

δabc ≅ δdcb by sas because

db ≅ ac . . given (side)

bc ≅ bc . . reflexive property (side)

∠dbc ≅ ∠ acb . . alternate interior angles where transversal bc crosses parallel lines bd and ac (included angle)