The area of the top face of a cube is 9 square centimeters. Use 9 of these cubes to make a rectangular prism. What is the volume of the rectangular prism?

Factorize: x^2+8x+10 i just solved it but i don't know if the process is correct

The equation of a parabola is given. y=18x2+4x+20 what are the coordinates of the focus of the parabola?

Last week , donnell practiced the piano 3 hours longer than marcus . together, marcus and donnell practiced the piano 11 hours . for how many hours did each young man practiced the piano