Given the function f(x) = -5^2 - x + 20, find f(3)

A.) -28
B.) -13
C.) 62
D.) 64

Adam drew two same size rectangles and divided them into the same number of equal parts. he shaded 1/3 of one rectangle and 1/4 of the other rectangle. what is the least number of parts into which both rectangles could be divided into?

At which value in the domain does f(x) =0?

Can someone me out here number 4 plz