Answer:

Step-by-step explanation:
The formula to calculate the surface area of a sphere is the following:

Where A is the area of the sphere and r is the radius of the sphere.
In this case we know that the diameter d of the sphere is:

The diameter is:
.
Thus

Then the surface area of the sphere is:

Plant B because each week brings 18 inches where as week 3 brings 20 for plant A.
Where is the passage so i can help you
Yes.
8/20 = 6/15 = 4/10 = 2/5
23 Idon’t know for sure but please let me know :)