Answer: 
Step-by-step explanation:
Given
The highest temperature recorded is 
The lowest temperature recorded is 
The amount of change between the high and the low temperatures is

G(x)=-x+0. Any equation reflected across the x axis will have the opposite x value as the original function. Hope this helps!
(f(x) in red, g(x) in blue)
To find radius just divide diameter by 2
So the answer will be
6 divide 2 = 3mm
X=0,2,3/8
That is what x equal i don’t know the question but I hope this help