If you combine the data from both beavers (in beaver1 and beaver 2 data sets), how much higher was the average (mean) temperature during periods of activity vs. periods of rest?

Using the rise/run rule. you would get 2/6.simp. 1/3

2(10 - 13x) + 9x = -34x + 6020 - 26x + 9x = -34x + distributive property-17x = -34x + subtraction property (subtracted 20 from both sides)17x = addition property (added 34x to both sides)x = 40/ division property (divided both sides by 17)