Answer:
I think its 55.
Step-by-step explanation:
So, the mean of it at first is 185, so that means you can do 185 x 6 = 1100 since there is 6 different types.
But, since the Blue Spruce is added there will be 7, so you can do 165 x 7, which gives you 1155. From there I would do 1155-1100 = 55
