The points (1,-11) and (5,r) lie on a line with slope 3/2. Find the missing coordinate

Does anyone know of a quizlet or something for edmentrum /plato algebra 1

Jorge planted flowers in his garden he planted one row of 12 tulips and one row of 36 daisies george's friend kylie has a garden with 75 flowers in it kylie's garden only contains tulips and daisies. is it possible for kylie‘s garden she have the same ratio of tulips to daisies as george's garden?

0if x and y vary inversely and y=6 as x=7, what is the constant of variation?