Alan is saving for a surfboard. he has saved $200 and he earns $15 per hour life guarding. if the total money saved (s) after (h) number of hours worked is given by the equation s = 15h + 200, how many hours will he need to work in order to earn $350 for his surfboard? a. 3 hours b. 8 hours c. 10 hours d. 30 hours