Review

Simplify Expressions

100

2x - 3x + 5

-x + 5

200

-2(x - 9) + 4

-2x + 22

300

-6x - 5(2x +11)

-16x - 55

400

-2 + -5 - 4(-x - 6)

4x + 17

500

5 - 4(2x + x -1)

-12x + 9

Rates/Ratios

100

Are 2/3 and 16/24 proportional?

yes

200

x / 10 = 3 / 5

Solve for x.

x = 6

300

Bob got paid $75 for 6 hours of work. How much would he get paid for 10 hours of work?`

125

400

11 / x = 121 / 132

x = 12

500

Is 36 / 72 proportional to 65 / 130 ?

Yes. 

Geometry

100

Write down the formulas for area of a circle, circumference of a circle, and area of a triangle.

Ac = pi*r^2

C = pi*d

A = bh/2

200

My radius is 9. What is the circumference?

C = 56.52

300

I have a right triangle with side lengths 3, 4, and 5. What is the area?

A = 6

400

If I have a radius of 11, what is the area of the semicircle?

A = 189.97

500

If I have a circle with Circumference of 81.64, what is the area?

A = 530.66

Two-Step Equations

100

2x - 3 = 17

x = 10

200

9x + 4 = 67

x = 7

300

13 = -4x - 7

x = -5

400

-x + 12x - 6 + 4 = 64

x = 6

500

-(3/5)x - 11 = -5

x = 9

Simple Fractions

100

(2/3) x (6/5)

4/5

200

7/8 + 3/7

73/56

300

(9/10) / (6/7)

21/20

400

-(3/4) - (-6/7)

3/28

500

-(5/3) + 6 / (3/4)

19/3