1. The lowest temperature on a winter morning was -7°F. Later the same day the temperature reached a high of 21°F. By how many degrees Fahrenheit did the temperature increase?
2. Disregarding sales tax, how much will you save when you buy a $12.00 video that is on sale for 20% off?
3. As part of a school report on the cost of gasoline, Raquel wants to find the average cost of purchasing a gallon of regular unleaded gasoline from local gas stations. She surveys 4 stations and finds the cost per gallon of regular unleaded gas from the 4 stations to be $2.45, $2.50, $2.49, and $2.56, respectively. Using this data, what is the average cost of purchasing one gallon of regular unleaded gasoline from these 4 gas stations?
4. What is the volume, in cubic inches, of a cube whose edges each measure 5 inches in length?
5. If 3(a - 6) = -21, then a = ?
6. The price of a cantaloupe is directly proportional to its weight. If a cantaloupe that weighs 3.0 pounds costs $3.87, approximately how much will a 2.25-pound cantaloupe cost?
7. In the figure below, D is a point on segment AB, and the segment CD is perpendicular to the segment AB. Based on this information, which of the following conclusions can be made?
8. If 6x - 5 = 3x - 16, then x = ?
9. Which of the following is always equal to y(3 - y) + 5(y - 7)?
10. The figure below shows part of a circle whose circumference is 40. If arcs of length 4 and length s continue to alternate around the entire circle so that there are 8 arcs of each length, what is the degree measure of each of the arcs of length s?
11. In a poll, 44 people were in favor of constructing a new high school, 58 were against it, and 8 people had no opinion. What fraction of those people polled were in favor of constructing a new high school?
12. On the line segment below, the ratio of lengths AB to BC is 1:4. What is the ratio of AB to AC?
13. If a board 9 feet 6 inches in length is cut into 2 equal parts, what will be the length of each part?
14. The speed of a car exceeds twice the speed of a truck by 15 mph. If t is the speed of the truck, which of the following expresses the speed, in miles per hour, of the car?
15. The circle shown below has a radius of 5 meters, and the length of chord XY is 8 meters. If C marks the center of the circle, what is the length, in meters, of segment CZ?