Using complements (with respect to 1) of the single discounts, find the net cost equivalent for the discount 20/5.

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!

b

step-by-step explanation:

step-by-step explanation:

b and c

if you was gonna solve for a, a is a   < -12