WILL GIVE BRAINLIEST make sure to show all of your work

Aright cylinder has a diameter of 8 m and a height of 6m. what is the volume of the cylinder

Sherrie is baking a pie for her family. she leaves the room and comes back to 35% of the pie having been eaten before she can put the topping on. how much 1 square inch strips of dough will she need for the top, now that a portion is missing? round your answer to the nearest while nimber.

How do i i solve this equation? -18 = x/3 + 3