1. Warm-Up #8 (Monday, 9/21/15)
Mary has a box that has a length of 1, a width of 1.2, and a height of What is the volume of Mary’s box?
Peter has a rope that is 𝑖𝑛𝑐ℎ𝑒𝑠 𝑙𝑜𝑛𝑔. He needs to have inches of rope. How much more does he need?

2. Homework (Monday, 9/21/15)
Lesson 2.04_page 107 #4, 5, 6, 7

3. Lesson 2.04 Simplifying Expressions

4. In order to simplify expression, you combine all the “like terms” What is combining “like terms” mean? Like Terms: Terms with the same variable and the same exact powers

6. Example 1
3x+3+7yx+8+14x

7. Example 2
𝑥𝑦 2 + 𝑦𝑥 2 +2𝑥𝑦−13𝑦𝑥

8. Example 3
− 𝑦 2 −5 𝑥 2 − 𝑥 2

9. You Try 𝑦 2 + 𝑦 2 +12𝑥𝑦−13𝑦𝑥 2) 𝑚𝑦 2 + 4𝑦 2 +15𝑦−𝑥
2) 𝑚𝑦 2 + 4𝑦 2 +15𝑦−𝑥
3)−2 3𝑦 2 −2 𝑥 2 + 𝑦 2

10. Example 4
Simplify and evaluate the expression
2(4x+3)-1; x = 7

11. Example 5
Simplify and evaluate the expression
3x – 7x +y; x=1 and y=2

12. Example 6
The length and width of the rectangles are given below. Find an expression for the area and an expression for the perimeter. Length is 4x +2 Width is 3