I REALLY NEED HELP PLZ HELPPP

Sketch the vector field vector f( vector r ) = 8vector r in the xy-plane. select all that apply. the length of each vector is 8. the lengths of the vectors decrease as you move away from the origin. all the vectors point away from the origin. all the vectors point in the same direction. all the vectors point towards the origin. the lengths of the vectors increase as you move away from the origin.

240 seventh graders and two-thirds of the students participate in after-school activities how many students participate in after-school activities

What is the total surface area of the square pyramid