At Yasmine's birthday party 5/6 of a pizza provided 10 pièces to the table, how many pieces were in the pizza when it was full? Support your answer with models

Find the volume of the solid generated when the region bounded by y= x and y= 4√x is revolved about the x-axis the volume of the solid is: (type an exact answer cubic units)

What is the length of the segment joining the points at (4,5) and (6,-2) round to the nearest tenth if necessary

How do i simply this expression (quadratic formula basis) on a ti-84 or normal calculator?