[Question]There are 160 tissues inside a tissue box.  If Tucker bought 3 boxes, and used 210 tissues while he was sick with the flu, how many tissues would he have left?
[Answer]When Tucker buys the tissue boxes, he has a total of 160 x 3 = 480 tissues. When he is sick with the flu and uses some of the tissues, he has 480 - 210 = 270 tissues left. The answer is 270.

[Question]A football club has a balance of $100 million. The club then sells 2 of its players at $10 million each, and buys 4 more at $15 million each. How much money is left in the club register in millions of dollars?
[Answer]The 2 players are sold for a total of 2 * 10 = $20 million. So the club has 100 + 20 = $120 million. The cost of buying 4 more players at $15 million each is 4 * 15 = $60 million. So the club now has 120 – 60 = $60 million. The answer is 60.

[Question]A portable battery charger can fully charge a smartphone in 26 minutes or a tablet in 53 minutes. Ana charged her tablet fully and her phone halfway. How many minutes did it take?
[Answer]Ana charged her phone halfway, so she took 26 / 2 = 13 minutes to charge her phone. Thus, it took Ana 13 + 53 = 66 minutes to charge her phone and tablet. The answer is 66.

[Question]Abigail spent 60% of her money on food, and 25% of the remainder on her phone bill. After spending $20 on entertainment, she is left with $40. How much money did Abigail have initially?
[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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Abigail had $20 + $40 = $60 left after paying her phone bill. The $60 is 100% - 25% = 75% of the remainder of her money after spending for food. Since 75% is $60, then 1% is $60 / 75 = $0.80. Thus, Abigail had $0.80 x 100 = $80 left after she spent money on food. The $80 is 100% - 60% = 40% of her original money. So 1% is $80 / 40 = $2. Therefore, Abigail initially had $2 x 100 = $200. The answer is 200.