Avi says that Michael's sample was not random because he did not survey students from other schools. Is Avi's statement correct? PLEASE ANSWER QUICK!!!

Ihave trouble finding the nth term of a linear sequence

1. writing an equation for an exponential function by 2. a piece of paper that is 0.6 millimeter thick is folded. write an equation for the thickness t of the paper in millimeters as a function of the number n of folds. the equation is t(n)= 3. enter an equation for the function that includes the points. (-2, 2/5) and (-1,2)

Richard save $32 in march he saved $48 in april and $38 in may then richard spent $113 on a keyboard how much money does richard have left