I know nothing about math please help me

Look at the following graph of the given equation. determine whether the equation is a function. explain why or why not.

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)

Aubrey read 29 books and eli read 52 books what number is equal to the number of books aubrey read?