A copy machine makes 44 copies per minute how many copies does it make in four minutes and 45 seconds

Number of copies made in 1 minute or 60 seconds = 44

Number of copies made in 1 second = 44/60

1 minute = 60 seconds

4 minutes = 4*60 = 240 seconds

total time = 240 + 45 = 285 seconds

Number of copies made in 285 seconds = (44/60) * 285 = 209 copies