What are the rate of changes for 39 & 16.5 = 30 & 12.4 = 28 & 10.4 = 19 & 10.3 = 23 & 11.2 =

39 & 16.5 = -22.5
30 & 12.4 = -17.6
28 & 10.4 = -17.6
19 & 10.3 = -8.7
23 & 11.2 = -11.8
if the values are y values you will subtract them from each other to get the numerical value and because they all go from a larger number to a smaller number the rate is a negative. if they were from a smaller value to a larger value teh rates of change would be positive.

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