Answer:
60 minutes
Step-by-step explanation:
How fast can one team member paint?
20 * 36 = 720 minutes
One team member can paint a 4800 square wall in 720 minutes.
How fast can one team member paint a square wall of 3600 square feet?
720 * (3600/4800) = 540 minutes
Now how fast would it take 9 team members?
540 / 9 = 60 minutes.
scientific notation is the system to write very large or very small number.
2 days
1.108
312km
1. Multiply. 4800 x 7% = 3744
2. Divide. 3744 / 12 = 312km sq.
So the area after 12 years is 312 km sq.
