Answer:
x=40
Step-by-step explanation:
8(1/2x + 5) = 200
4x + 40 = 200
4x = 160
x = 40
I think it’s B but I’m not 100%
Answer:
3
Step-by-step explanation:
To find the average add all these numbers together, then divide by how many numbers you have.



Surface area o fthe ball = 4 * 3.14 * radius^2
if diameter = 1.680 then radius = 1/2 * 1.680 = 0.84
so surface area = 4 * 3.14 * 0.84^2 = 8.862