Can somebdy help for brainliest

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)

An objects motion is described by the equation d= 4sin (pi t) what will the height of the object be at 1.75 seconds?

Christina can paint 420 square feet in 105 minutes. which unit rate describes the scenario?