Baez has 25 marbles. She loses 20% of them one day. Then a friend sees her and gives her double the amount that Baez has after she lost them. How many marbles does Baez end up with? Give the rationale and then the answer.
Let's think step by step. She loses 5 marbles because 25 x .2 = 5. She has 20 marbles after this because 25 - 5 = 20. Her friend gives her 40 marbles because 20 x 2 = 40. Adding those marbles to the 20 she had before, she ends up with 40 marbles + 20 marbles = 60 marbles.. The answer is: 60.

John runs a telethon to raise money. For the first 12 hours, he generates $5000 per hour. The remaining 14 hours, he generates 20% more per hour. How much total money does he make? Give the rationale and then the answer.
Let's think step by step. He gets 12 * 5000 = $60000 for the first 12 hours. For the next 14 hours, he gets 5000 * .2 = $1000 more per hour. So he gets 5000 + 1000 = $6000 per hour. So he gets 6000 * 14 = $84000. So in total, he makes 84000 + 60000 = $144,000.. The answer is: 144000.

Haily wants to go to the salon and do her nails, cut her hair and do a facial cleaning. She doesn't want to spend much, so she called 3 salons to get their prices: Gustran Salon, Barbara's Shop, and The Fancy Salon. At Gustran Salon, the haircut is $45, the facial cleaning is $22 and the nails are $30. At Barbara's shop, the nails are $40, the haircut is $30 and the facial cleaning is $28. And, at the Fancy Salon, the facial cleaning is $30, the haircut is $34 and the nails are $20. How much would Haily spend at the cheapest salon? Give the rationale and then the answer.
Let's think step by step. So first, we should add the prices of all salons. At Gustran Salon, the total price is: $45 + $22 + $30 = $97. The total price at Barbara's shop is: $40 + $30 + $28 = $98. The total price at The Fancy Salon is: $30 + $34 + $20 = $84. At Gustran salon she would spend $97, at Barbara's Shop she would spend $98, and at The Fancy Salon she would spend $84, so she would spend $84 at the cheapest salon.. The answer is: 84.