The amounts below show the change (measured in feet) in water level over four months. What is the average monthly change in water level? 2/5, -4/5, 9/5, 1/5

2/5

Step-by-step explanation:

Average is the ratio of the sum of the data to the sample size

Sum of data = 2/5-4/5+9/5/+1/5

Sum of data = (2-4+9+1)/5

Sum of data = 8/5

Sample size = 4

Average = 8/5÷4

Average = 8/5× 1/4

Average = 2/5

Hence the average monthly change in water level is 2/5

a function could be identified in 3 ways either on a chart,graph, or ordered pairs. first a function is that each point has its own. the rule is that there can be many x's to one y but there can not be 2 x's at different y's. so on a graph when you put a straight line through the y's there should be one dot only to be a function.

step-by-step explanation:

step-by-step explanation:

hans did not square the 40-unit side; he merely multiplied it by 2.   incorrect.