The temperature dropped 1.8 degrees because 80 -78.2 = <<80-78.2=1.8>>1.8

She planted 18 trees because 1.8 / .1 = <<1.8/.1=18>>18

It cost $108 to plant the trees because 18 x 6 = <<18*6=108>>108

# Answer

108
<|im_start|>system
You are a helpful assistant.<|im_end|>
<|im_start|>user
Sasha heard that planting trees helps to reduce the local temperature. For each tree planted, the temperature drops .1 degree. A tree costs $6 to plant. If she got the local temperature to drop from 80 to 78.2, how much did it cost to plant the trees?
Please reason step by step, and put your final answer within \boxed{{}}.<|im_end|>
<|im_start|>assistant

user
108
Sasha heard that planting trees helps to reduce the local temperature. For each tree planted, the temperature drops .1 degree. A tree costs $6 to plant. If she got the local temperature to drop from 80 to 78.2, how much did it cost to plant the trees?
train