Question: Iris went to the mall to buy clothes. She bought three jackets at $10 each, two pairs of shorts at $6 each, and four pairs of pants at $12 each. How much did she spend in all?
Answer: Step-by-step reasoning process: Three jackets cost 3 x $10 = $30. Two pairs of shorts cost 2 x $6 = $12. And, four pairs of pants cost 4 x $12 = $48. Therefore, Iris spent $30 + $12 + $48 = $90.
So the answer is 90.

Question: Matilda has half as many jellybeans as Matt. Matt has ten times as many jellybeans as Steve. If Steve has 84 jellybeans, how many jellybeans does Matilda have?
Answer: Step-by-step reasoning process: Matt has 84 * 10 = 840 jellybeans. Matilda has 840 / 2 = 420 jellybeans.
So the answer is 420.

Question: John earned $18 on Saturday but he only managed to earn half that amount on Sunday. He earned $20 the previous weekend. How much more money does he need to earn to give him the $60 he needs to buy a new pogo stick?
Answer: Step-by-step reasoning process: John earnt $18 / 2 = $9 on Sunday. In total, John made $18 + $9 + $20 = $47 over the two weekends. John needs $60 - $47 = $13 extra to buy the pogo stick.
So the answer is 13.

Question: Madeline has $48 and her brother has half as much. How much do they have together?
Answer:

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: Madeline's brother has $48 / 2 = $24. Together, they have $48 + $24 = $72.
So the answer is 72.