Sonya buys four pairs of shoes on sale for buy one, get one 50% off. the sales tax is 6.5%. if the original price for each pair of shoes was $35, how much does sonya pay for the four pairs altogether?

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!

1 is b and 2 is d

step-by-step explanation: