Can someone help me please

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

Abus travels 36 miles in 45 minutes. enter the number of miles the bus travels in 60 minutes at this rate.

45% of the trees in a park are apple trees. there are 27 apple trees in the park. how many trees are in the park in all?