Bob and Susie wash cars for extra money over the summer. Bob's income is determined by f(x) = 6x + 13, where x is the number of hours. Susie's income is g(x) = 4x + 18. If Bob and Susie were to combine their efforts, their income would be h(x) = f(x) + g(x). Assume Bob and Susie both work 3 hours and split the total income. Create the function h(x), and indicate if Bob will make more money working alone or by teaming with Susie.