Answer the following question.
Joe sells cookies for 20% more than it costs to make them. If he sold 50 cookies and earned $60, how much do the cookies cost to make?
Step-by-step reasoning process: He sold the cookies for $1.20 each because 60 / 50 = 1.2. They cost $1 to make because 1.2 / 1.2 = 1.
The answer is 1.

Answer the following question.
It takes 3 ounces of wax to detail Kellan’s car and 4 ounces to detail his SUV. He bought an 11-ounce bottle of vehicle wax, but spilled 2 ounces before using it. How many ounces does he have left after waxing his car and SUV?
Step-by-step reasoning process: Kellan used 3 + 4 = 7 ounces of wax for his car and SUV. Since he spilled 2 ounces, he has 11 - 2 - 7 = 2 ounces of wax left.
The answer is 2.

Answer the following question.
The number of students in Kylie's class is 50. In a particular test, ten students scored 90 marks, 15 scored ten marks fewer than the first ten students, and the rest scored 60 marks each. What are the average marks for the whole class?
Step-by-step reasoning process: The total marks for the first ten students are 90 * 10 = 900 marks. The 15 students who scored ten marks fewer than the first ten had 90 - 10 = 80 marks each. The total marks for the following 15 students are 15 * 80 = 1200 marks. The total number of students who scored above sixty is 10 + 15 = 25. If 50 students were present in the class, those who scored sixty are 50 - 25 = 25. If 25 students scored 60, then their total marks are 60 * 25 = 1500 marks. The whole class scored a total of 1500 + 1200 + 900 = 3600 marks. The average for the class is 3600 / 50 = 72 marks.
The answer is 72.

Answer the following question.
A bag of jellybeans contains 8 black beans and 2 more green beans. It also contains 1 less orange bean than green beans. How many jellybeans are there in the bag?

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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Step-by-step reasoning process: There are 8 + 2 = 10 green beans. There are 10 - 1 = 9 orange beans. There are 8 black + 10 green + 9 orange = 27 jelly beans.
The answer is 27.