7. Mr. Sheng is using a faucet attachment to fill the fish tank in his biology classroom. The graph below shows the amount of water in the tank during the first several minutes since he turned on the faucet. What is the slope of a line joining the points on the graph? If your answer is not an integer, express it as a decimal.
Filling a Fish Tank
Volume (gallons)
55
50
45
40
35
30
25
20
15
10
5
(216)
.
二
1
2 3 4 5 6 7 8
Time (minutes)

How do you find the circumfrance of a circle?

Someone answer asap for ! max recorded the heights of 500 male humans. he found that the heights were normally distributed around a mean of 177 centimeters. which statements about max’s data must be true? a. the median of max’s data is 250 b. more than half of the data points max recorded were 177 centimeters. c. a data point chosen at random is as likely to be above the mean as it is to be below the mean. d. every height within three standard deviations of the mean is equally likely to be chosen if a data point is selected at random.

Pls the last one and it has to be like number 6