We have a question: Brandon has a collection of 20 baseball cards. Malcom has 8 more cards than Brandon. However, then Malcom gives half of his cards to his friend Mark. How many cards does Malcom have left?
And an answer: 14
So how you got the answer?
Malcom has 20 cards + 8 cards = 28 cards. Malcom gives away 1 / 2 * 28 cards = 14 cards to Mark. Malcom has 28 - 14 cards = 14 cards remaining.

We have a question: At Mario's barbershop haircuts are 50% more expensive during the weekends. If Mario paid $18 for his last haircut on Monday, how much he would have paid the day before?
And an answer: 27
So how you got the answer?
Mario's $18 cut on Monday would have been 50% more expensive on Sunday or $18 * 50% = $9 more expensive. That means he would have paid $9 more on Sunday than what he paid ($18) on Monday or $9 + $18 = $27.

We have a question: Federal guidelines recommend eating at least 2 cups of vegetables per day. From breakfast on Sunday to the end of the day on Thursday, Sarah has eaten 8 cups. How many cups per day does Sarah need to eat of her vegetables in order to meet her daily minimum requirement for the week?
And an answer: 3
So how you got the answer?
There are 7 days in a week and 2 cups are recommended per day, bringing the total to 7 days * 2 cups / day = 14 cups for the week. Out of the 14 total cups needed for the week, Sarah has already eaten 8, for a total of 14 cups - 8 cups = 6 cups left to consume for the week. Sunday through Thursday equals 5 days that have passed. If there are 7 days in the week then Sarah has 7 days - 5 days = 2 days left of the week. If she needs to eat 6 more cups in the next 2 days then she will have to eat 6 cups / 2 days = 3 cups per day over the next two days.