1. Suppose that you are taking a course that has 4 tests. The first tests are for 100 points each and the fourth test is for 200 points. To get B in the course, you must have an average of at least 80 percent on the 4 tests. Your scores on the first 3 tests were 83,83, and 94. What is the minimum score you need on the fourth test to get an B for the course?

2. Solve the inequality and write your answer in interval notation. Use “U” between the two intervals. Use “oo” ( two lower case o’s) for ∞. 20x – 16< -20 + 9x.

3. Sketch a graph of

4. Felicia cuts a piece of wood into three pieces. The second piece is three times as long as the first piece, and the third piece is 3 inches longer than the first piece. If the total length of the wood is 48 inches, find the lengths of each of the three pieces.

**Show your work for each of the following steps:**

1. Set up a variable dictionary.

1. Set up an equation.

1. Solve the equation.

1. Answer the question with a sentence.

1. Look back.

5. Two angles are said to be *supplementary* if their sum is 180 degrees. Suppose you have two supplementary angles such that the second angle is 24 degrees less than 5 times the measure of the first angle. Find the angles.

**Show your work for each of the following steps:**

1. Set up a variable dictionary.

1. Set up an equation.

1. Solve the equation.

1. Answer the question with a sentence.

1. Look back.