1. Elijah and Marco are racing from their school to Marco's house. In the first 10 seconds, Elijah runs 30 yards, and Marco runs 33 yards. Marco stops for 5 seconds to catch his breath and then starts running again. Assuming that each of the boys maintains his respective pace, how long will it take for Marco to catch up with Elijah?

2. How many even 3-digit numbers can be formed using the digits 1, 2, 3, 4, and 5, assuming that no digit can be repeated?

3. Anita and Mary Ann ordered a pizza. When it was brought to their table, it had been cut into a number of equal-sized pieces. Anita ate 1/2 of the pizza, and Mary Ann ate 1/4 of the pizza. If 5 pieces remained, how many pieces were there to start with?

4. A certain school has 40 teachers, and each teacher teaches 4 classes. Each class has 30 students and 1 teacher. Each student takes 5 classes. How many students are in the school?

8. The National Weather Service has tracked a severe storm moving northeast at 50 miles per hour. Pleasantville is directly in the path of the storm at 14.5 kilometers away from the current location of the storm's leading edge. Approximately how many minutes will it take for the storm to reach Pleasantville?

5. At the end of the school year, the average age of the 35 teachers at Diamond Junior High School was 44 years. Over the summer, 3 teachers aged 65, 62,and 54 retired and 2 new teachers, aged 25 and 34, were hired. What was the average age of teachers when school started again in the fall?

6. Find the equation of a line l so that, along with the lines y=0 and y=6-2x, it bounds a triangle with an area of 1.

7. There are 4 read balls and 2 white balls in a jar. One ball is removed at random and replaced with a ball of the opposite color. The jar is then shaken, and 1 ball is randomly selected. What is the probability that the ball will be red?