Develop and reduce. Plz

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

Write an equation for the function that includes the points (2,100)and (3,100)

Can someone me with these two circle theorem questions asap?