Question: Mara has 40 crayons and 10 percent of her crayons are pink. Luna has 50 crayons and 20 percent of them are pink. In total how many pink crayons do Mara and Luna have? Think carefully first, then make a decision:

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
user
Mara has 40 x (10 / 100) = 4 pink crayons. Luna has 50 x (20 / 100) = 10 pink crayons. Together they have 4 + 10 = 14 pink crayons. So the answer is 14.