I just did a test and want to know if these answers are right

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

Abox contains 1 plain pencil and 4 pens. a second box contains 5 color pencils and 5 crayons. one item from each box is chosen at random. what is the probability that a plain pencil from the first box and a color pencil from the second box are selected? write your answer as a fraction in simplest form.

Find the zeros of each function. f(x) = x^2 + 5x - 6