1. Unit 1 Lesson 3 Simplify for x = 7, y = 4. You must show your steps and explain your answer:



2. Unit 1 Lesson 3 Consider the expression -2k – 7 + 5m – n

a. What is the coefficient of the variable k?

b. What is the coefficient of the variable m?

c. What is the coefficient of the variable n?

d. What is the constant term?

3. Unit 1 Lesson 5 and 7 Write algebraic expressions to represent each of the phrases below. Use the variable n for each.

a. Two more than the product of a number and seven.

b. A number decreased by seven.

c. Seven decreased by a number.

d. Seven less than a number.

e. Unit 1 Lesson 7 Write an equation to represent the sentence below. Use the variable n. You don't need to solve the equation:

Thirty-seven less than a number is the quotient of the number and four.

4. Unit 2 Lesson 2 Let A = {1,2,3,4,5,6,7}; B = {2,4,6,8,10}

a. Find intersection of sets A and B. Explain your answer.

b. Find the union of sets A and B. Explain your answer.

5. Prep

Consider the set A = {-42/6, -2, 0, 13/6, 17, 4, -265}

Are all the numbers in A integers? If not, which are not integers? Explain your answer.