5:4 i’m not quite sure but i think it would be 5:4
Answer:
D
Step-by-step explanation:
Use the formula for the SA of a hemisphere.

Now we can find the radius of the hemisphere, which is 15.
Then, we can square that and multiply it by 2 to get 450.
Now, let's use the formula for the Volume of a hemisphere.

Now we can cube 15 and multiply it by 2 to get 6750.
Then we can divide this number by 3.
2250.
So the answer is D.
Answer:
4•8 feet
Step-by-step explanation:
Distance= first floor × second ÷ escalator
Distance= 12feet × 12feet ÷ 30 feet
= 12×12÷30
= 4•8 feet
Answer: 300
Step-by-step explanation: 70days is 10 weeks