What is the greatest common factor of 9x^2y and 5x^4y^2?

Xto the second power plus 14x plus 48. what are the factors? we are doing factoring trinomials with a=1

There are a total of 75 students in the robotics club and science club. the science club has 9 more students than the robotics club. how many students are in the science club?

Find the area of the surface obtained by rotating the curve z=4e^2y from y = 0 to y =1 about the y-axis. the area is square units