1) The document contains notes from a math lesson on February 14, 2014. It includes assignments that are due on Monday and notes how to get extra credit by signing a test. 2) The warm-up questions involve converting units, simplifying expressions, and solving equations. The lesson discusses using ratio boxes to calculate percentages of change. 3) Examples are provided to demonstrate calculating percentages of change using ratio boxes.

1. Lesson 67.notebook
Assignment:
1-->Set 67 (odds) - Due Monday [2/17]
2-->Test #9 signed for extra credit
February 14, 2014

2. Lesson 67.notebook
February 14, 2014
Lesson 67 Warm-Up:
1)
Convert 90 meters per minute to meters per second.
2)
Simplify:
3)
Simplify:
4)
Solve:
7
12
3
8
( )
x 4 y3 z 2
x 2 y3 z 4
7
8
x
1
2
*show all steps for credit.
5)
Solve:
­1
9
4
3(-2x + 1) = 21
*show all steps for credit.
7
8

3. Lesson 67.notebook
Lesson 67:
We can also use ratio boxes to calculate percents of change!
February 14, 2014

4. Lesson 67.notebook
Lesson 67 Examples:
pg. 454
A)
B)
February 14, 2014

5. Lesson 67.notebook
C)
D)
February 14, 2014

6. Lesson 67.notebook
E)
F)
February 14, 2014

7. Lesson 67.notebook
G)
February 14, 2014