Which one would be the answer out of all these choices??

Solve - pv + 40 < 65 for v solve 7w - 3r = 15 for r

(c) the diagram shows the first three shapes of a matchsticks arrangement.first shape = 3second shape = 5third shape = 7given m represents the number of matchstick used to arrange the n'th shape.(i) write a formula to represent the relation between m and n. express m as the subjectof the formula.(ii) 19 matchsticks are used to make the p'th shape. find the value of p.

What is the equation of a line that passes through points (0, 4) and (-4,-8)?