Question: Caleb has 3 dozen jellybeans. Sophie has half as many jellybeans as Caleb. How many jellybeans do they have in total?
Answer: Caleb has 3 x 12 = 36 jellybeans. Sophie has 36 / 2 = 18 jellybeans. Together, they have 36 + 18 = 54 jellybeans. The answer is 54.
[Question]Roman the Tavernmaster has $20 worth of gold coins. He sells 3 gold coins to Dorothy. After she pays him, he has $12. How many gold coins does Roman have left?
[Answer]Dorothy paid $12 for 3 gold coins so each gold coin is worth $12 / 3 = $4. The Tavern master originally had $20 worth of gold coins which is $20 / $4 = 5 gold coins. He gave 3 out of 5 gold coins to Dorothy so he now has 5 - 3 = 2 gold coins left. The answer is 2.
Q: Bea and Dawn both have a lemonade stand. Bea sells her lemonade at 25 cents while Dawn sells hers at 28 cents. If Bea sold 10 glasses and Dawn sold 8 glasses, how much more money (in cents) did Bea earn than Dawn?
A: Bea's sales amount to $0.25 / glass x 10 glasses = 250 cents. Dawn's sales amount to $0.28 / glass x 8 glasses = 224 cents. So, Bea earned $2.50 - $2.24 = 26 cents more than Dawn. The answer is 26.
Question: A clothing store sells 20 shirts and 10 pairs of jeans. A shirt costs $10 each and a pair of jeans costs twice as much. How much will the clothing store earn if all shirts and jeans are sold?
Answer: Twenty shirts amount to $10 x 20 = $200. The cost of each pair of jeans is $10 x 2 = $20. So 10 pairs of jeans amount to $20 x 10 = $200. Therefore, the store will earn $200 + $200 = $400 if all shirts and jeans are sold. The answer is 400.
[Question]Nina has received a scholarship worth $8000 less than Kelly's amount. Kelly received a scholarship worth twice the amount Wendy received. How much money did they receive in scholarship together if Wendy received a scholarship worth $20000?
[Answer]If Wendy received a scholarship worth $20000, Kelly, who received twice as much, received 2 * $20000 = $40000. Together, Wendy and Kelly received Scholarship worth $40000 + $20000 = $60000. Nina received a scholarship worth $8000 less than Kelly's amount, a total of $40000 - $8000 = $32000. Together, the three received scholarship worth $32000 + $60000 = $92000. The answer is 92000.
[Question]Marla has to spend 20 minutes driving one way to her son's school, then 70 minutes attending parent-teacher night, then the same amount of time driving home. How many minutes does Marla spend on this errand in total?
[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.
user
First multiply Marla's one - way driving time by 2 to find her total driving time: 20 minutes * 2 = 40 minutes. Then add Marla's driving time to the time spent attending the conference to find the total time: 70 minutes + 40 minutes = 110 minutes. The answer is 110.