Your answer should be 86.68.
Mean: you add up all the numbers and divide it by the total of the numbers, in this case there are a total of 11. I added all of them up and got 953.5 and divided by 11. Hoped i helped
the one that has 65 and 54, 3rd one
20 skittles double the number of red
the red skittles have 10 skittles the orange skittles have 20 so its additon
20
+
10
------
30
Found this when I was doing my own work, hope this helps.
(-3,5). (2,-3)
x1,y1. x2,y2
y2-y1. -3-5. -8
--------- = ------- = ----- =8 =m
x2-x1. 2-3. -1
plug the rest in