Answer:
0.236
Step-by-step explanation:
First put it in order
0.199, 0.211, 0.225, 0.236, 0.257, 0.264, and 0.283
Then find the middle number
0.236
1/4 of 20 is 5.
You divide 20 by 4.
Then you get 5, which is your final answer.
Have a nice day!
Answer:
2.4 hours
Step-by-step explanation:

2.4 hours
4, 2, 1, 3
we cannot use 2 before having another triangle, so 4 must be before 2
we can use 1, but it will be just a restatement of the given information is not done before 4 and 2
3 is the final goal, which is always the last step