Answer: 20
1) simplify 2^2 to 4
4*5
2) simplify
20
Answer:
10 hours (I am not positive)
Step-by-step explanation:
We first want to find the volume of pool which is 30 x 18 x 4 = 2160.
Then you are going to divide by 216 to find how many hours it takes to drain the whole pool. (I'm not that big of an expert)
Answer:
220 [mm²].
Step-by-step explanation:
all the details are in the attachment, the answer is marked with pink colour.
Answer:
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Step-by-step explanation: