ҚАТЫНАСТАР ЖӘНЕ ПРОПОРТЦИЯЛАР

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)

:24% of students in a class are girls. if there are less than 30 students in this class, how many students are there? how many girls are there?

Two airplanes start at the same place and travel in opposite directions,one at 395 miles per hour and the other at 422 miles per hour. how many hours will it take for the planes to be 2451 miles apart?