Question: Bill picked 50 apples from the orchard with his wife and two children. He sends each of his kids to school with 3 apples for their two favorite teachers. His wife Jill bakes two apple pies, using 10 apples per pie. How many apples does Bill have left? 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.
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Bill gives each of his children 3 apples, so since he has two children this is 3 * 2 = 6 apples. Jill bakes 2 apple pies, using 10 apples each so this means she uses 10 * 2 = 20 apples. In total, this means 20 + 6 = 26 apples were used. Since Bill began with 50 apples, this means there are 50 - 26 = 24 apples remaining. So the answer is 24.