Answer: 539 without defects
Step-by-step explanation: Im pretty sure we have to turn 12/320 into a percent, which is 0.0375, or 3.75%
So with that information, we need to find 3.75% of 560.
do 0.0375 x 560, which is 21.
21 are defects, so do 560 - 21 is 539.