Answer:
40
Step-by-step explanation:
Answer:
I need a graph paper and to record a video to show you this, but it's

9 is subtracted from the sum of 5 and a number
Six hundred eighty thousand and ten
hope this helps
or 680,010
1) 8×3=24, 3 shifts, each 8 hours
2) 6×4=24, 4 shifts, each 8 hours
3) 12×2=24, 2 shifts, each 12 hours