Help pls #6 give me some good ideas

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

When a valve is open 281 gallons of water go through it in one hour the number of gallons that would go through in 94 hours is

Two consecutive negative integers have a product of 30. what are the integers?