Pls help

Evaluate the expression for v = 0.

5 + 2v =

Determine whether the set of whole numbers is closed under addition. explain why the set is or is not closed. give an example.

Question: a) does the given set of points represent a linear function? how do you know? b) assume that the point (-2,4) lies on the graph of a line. what y-values could complete this set of ordered pairs that lie on the same line: (- (hint: there are several correct answ

Write the equation in general quadratic form: plz !