Anna is three times as old as Diane. If the sum of their ages is 44,how old is Anne? ( Use d as the variable )

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

Evaluate the following expression 1/3^2

How do i do this activity, is appreciated