CH 1-5

Chapter 1

100

What is the absolute value of −8?

8

200

Add: −7+4

-3

300

subtract: −3−(−9)

-6

400

Multiply: -5(4)

-20

500

A submarine is at a depth of −120-120−120 feet. It rises 15 feet, then descends 25 feet, and finally rises 10 feet. What is its final depth?

-120

Chapter 2 (fractions are :)

100

Simplify: 3.5+2.1

5.6

200

Simplify: 5:6 - 1:3

1:2

300

7:8 of 2:3

7:12

400

divide: -6.4 / 0.8

-8

500

Sorry, I am not allowed to type in math...

Solve: 5:6/(-2):(3) + 1:4

-1

Chapter 3

100

Simplify: 3x+4x

7x

200

Evaluate: 5x−2 when x=−3

-17

300

Write the phrase as an expression: "The sum of three times a number and 7."

3x+7

400

Solve: 2x+5=13

x=4

500

Solve: 3(x−4)−2(x+3)=7

x=25

Chapter 4

100

Write an inequality: "The sum of a number and 4 is less than 10."

x + 4 < 10

200

Solve: x−5≥−2x - 5

x ≥ 3

300

Solve: −3x>12

x < -4

400

Write a real-world example of an inequality that could represent a budget constraint

Answers vary; e.g., "You can spend at most $50."

500

Solve and graph: −2(x−3)≤4x+8

x≥−(1/3) graph includes a closed circle at −(1/3) with an arrow to the right

Chapter 5

100

Write the ratio of 6 cats to 9 dogs in simplest form.

2:3

200

Solve: 5:8=x:16

x=10

300

Is 12:16 proportional to 3:4?

yes  

400

A car travels 180 miles in 3 hours. How far can it travel in 7 hours?

420 miles

500

A recipe calls for 3 cups of sugar to make 8 dozen cookies. How many cups of sugar are needed to make 15 dozen cookies?

x=5.625, or 5 5/8 cups