Answer the following question.
At a middle school, 20% of the students are in the band. If 168 students are in the band, how many students go to the middle school?
Step-by-step reasoning process: Let X be the number of students in the middle school. We know that X * 20% = 168 students are in the band. So there are X = 168 / 20% = 840 students in the middle school.
The answer is 840.

Answer the following question.
Jay went to watch a singer in a one hour 20 minutes concert. If there was a 10-minute intermission, and all the songs were 5 minutes except for one song that lasted 10 minutes, how many songs did she sing?
Step-by-step reasoning process: The time the singer had for singing was 80 - 10 = 70 minutes. The time the singer had for singing 5 - minute songs was 70 - 10 = 60 minutes. The number of 5 - minute songs was 60 / 5 = 12 songs. The total number of songs sung is 12 + 1 = 13 songs.
The answer is 13.

Answer the following question.
Lola baked 13 mini cupcakes, 10 pop tarts, and 8 blueberry pies. Meanwhile, Lulu made 16 mini cupcakes, 12 pop tarts, and 14 blueberry pies. How many pastries have Lola and Lulu made altogether?
Step-by-step reasoning process: They made 13 + 16 = 29 mini cupcakes altogether. They made 10 + 12 = 22 pop tarts altogether. They also made 8 + 14 = 22 blueberry pies altogether. Therefore they made a total of 29 + 22 + 22 = 73 pastries altogether.
The answer is 73.

Answer the following question.
Mr. John jogs for 1 hour 30 minutes in the morning every day. How much time (in hours) will he have spent jogging after two weeks?
Step-by-step reasoning process: There are 60 minutes in an hour so 1 hour 30 minutes is equivalent to [1 + (30 / 60)] hours = 1.5 hours. There are 7 days in a week so he spends 1.5 * 7 = 10.5 hours jogging every week. After 2 weeks he will have spent 2 * 10.5 = 21 hours jogging.
The answer is 21.