l + r = 35 -------> l = 35 - r
24r + 11l = 528
Substitute!
24r + 11(35 - r) = 528
Solve for r.
As far as graphing, solve each equation for l or r and let that be your y. If you are just supposed to graph the cost of each type of batting glove, you should be able to do that.
Cameron H.
01/08/18