Idon’t understand the wording of this. can someone ? just 11 and 12.

Use the radius you found in part i (r=26.8 cm) with the surface area formula below to find the surface area of the sphere. show your work and round your answer to the nearest tenth. the surface area of a sphere: sa = 4πr^2 self note: 3.8.4

Simplify.7x + 3y - 2 + 6x + 1 + y squared 2 you! ; )

With alll of except for the 2 that i did already