Josie selected a number n. she divided n by 2 and then subtracted 0.5 from the result. she took half of that result and then subtracted 0.5 to get the final result of 10. what is the value of n?

then, the surface area of the sphere shown in the image is: 256π sq. units!

step-by-step explanation:

the lateral surface area of a sphere is 2πrh where h=2r.

then:

surface area = 4πr^2.

in this case, r=8 units ⇒ surface area = 4π(8 units)^2. = 256π sq. units!

then, the surface area of the sphere shown in the image is: 256π sq. units!

step-by-step explanation: