We have a question: During a school meeting, 300 students and 30 teachers are seated but 25 students are standing. How many attended the school meeting?
And an answer: 355
So how you got the answer?
There are 300 students + 30 teachers = 330 people that are seated. Since there 25 students that are standing, so 330 + 25 = 355 people who attended the school meeting.

We have a question: Kim orders a $10 meal and a drink for 2.5. She gives a 20% tip. She pays with a $20 bill. How much does she get in change?
And an answer: 5
So how you got the answer?
The dinner cost 10 + 2.5 = $12.5. The tip comes to 12.5 * .2 = $2.5. So the total cost is 12.5 + 2.5 = $15. That means she gets 20 - 15 = $5 in change.

We have a question: At Penny's bakery, her famous blueberry cheesecakes are $7 a slice. Each cheesecake pie is cut into 6 thick slices. If she sells 7 cheesecake pies, how much money does she make?
And an answer: 294
So how you got the answer?
There are a total of 7 x 6 = 42 cheesecake slices. She makes a total of 42 x $7 = $294.