U add all the number together and then divide of how many numbers there is
Answer:
x = -1.8
Step-by-step explanation:
10(-1.8) - 2 = -18 - 2 = -20
so X = -1.8
It just depends on the equation that you have to solve
3,9,27 ( the 9 can be multiplied by itself to get 81 9*9)