Answer:
Its b!!!!!!
Step-by-step explanation:
Step-by-step explanation:
I am not sure bout this question sry
you reap what you sow ;)
The area of a circle in terms of the circle's radius

is

Differentiating both sides with respect to

, you get
B. Lost 850 ft
800-450= 350
1200-350=850
I hope I helped :D
Ya I like the first one better than the second one but both are good