Answer:

Step-by-step explanation:

After removing one black marble:

6. m=2
7. m=3
8. m=0
Hope it help
Answer:Find the water height for a weir that is 3 feet long and has flow of 38.4 cubic feet per second. SOLUTION: Therefore, the water height for the weir is 4 feet.
Im pretty sure it would be 6x