Adding and Subtracting integers
Fractions to decimals
Rational Coefficients
Representing Relationships;Functions
Systems of Equations,Substitution
100

5 + (-3) = 


100

7/20

.35

100

30=6/5u

u=25

100

Deandre plans to watch 3 movies each month. Write an equation to represent the total number of movies n that he will watch in m months.

3m=n

100

y=x=12

y=13

x= 25 

200

-5 + (-4) =

-9

200

11/25

.44

200

-14 = -7/4x

x=8

200

Eric makes 8 dollars for each hour of work. Write an equation to represent his total pay p after working h hours

8h=p

200

x+y=7

x=4

y=3 

300

-2 - 5 =

7

300

2/5

0.4

300

v/5 =12.5 

v = 62.5

300

An amusement park charges an admission fee of 25 dollars per person. The cost, C (in dollars), of admission for a group of p people is given by the following.

=C25p

What is the cost of admission for a group of 3 people?

75 dollars 

300

y=2x+9

y=4x-9

x=9

y=27

400

-3 - 4 =

7

400
17/9

1.8 repeated 

400

Yoko is saving money to buy a game. So far she has saved $18, which is two-thirds of the total cost of the game. How much does the game cost?

$27

400

A plant is already 14.00 meters tall, and it will grow 20 centimeters every month. The plant's height, H (in meters), after x months is given by the following.

=H+14.000.20x

What is the plant's height after 50 months? 

24.00 meters

400

y=x+57

y=8x+15

x=6

y=63

500

-30 + 48 

18

500
91/99

0.91 repeated 

500

An international company has 13,700 employees in one country. If this represents 26.9% of the company's employees, how many employees does it have in total?

Round your answer to the nearest whole number.

  50,929 employees

500

Karen purchased a prepaid phone card for $25.00. Calls cost 5 cents a minute using this card. The credit, C (in dollars), left on the card after it is used for xminutes of calls is given by the following.

=C−25.000.05x

How much credit is left on the card after Karen uses it for 40 minutes of calls?

23.00 dollars 

500

2x+5y=16

y=3x-7

x=3

y=2