Answer the following question.
Albert wants a paintbrush that costs $1.50, a set of paints that costs $4.35, and a wooden easel that costs $12.65. Albert already has $6.50. How much more money does Albert need?
Step-by-step reasoning process: The total cost of the paintbrush, the paints, and the wooden easel is $1.50 + $4.35 + $12.65 = $18.50. Albert needs $18.50 − $6.50 = $12 more.
The answer is 12.

Answer the following question.
A 40 meters rope was cut into 2 parts in the ratio of 2:3. How long is the shorter part?
Step-by-step reasoning process: The rope was cut into 2 + 3 = 5 parts. So each part is 40 / 5 = 8 meters long. Since the shorter part is consists of 2 parts, then it is 8 x 2 = 16 meters long.
The answer is 16.

Answer the following question.
10 people attended class on Monday, 15 on Tuesday, and 10 on each day from Wednesday through Friday. What was the average number of people who attended class each day?
Step-by-step reasoning process: A total of 10 + 15 + 10 + 10 + 10 = 55 people attended class across the 5 days. An average of 55 people / 5 days = 11 people per day attended class.
The answer is 11.

Answer the following question.
Joanna has $8. Compared to her money, her brother has thrice as much while her sister has only half as much. How much money do the three of them have altogether?

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: Joanna has $8. Joanna's brother has thrice as much as Joanna, so he has $8 * 3 = $24. Her sister has half as much as Joanna, then she has $8 / 2 = $4. Together they have $8 + $24 + $4 = $36 altogether.
The answer is 36.