Math 7 Review II

Expressions/Equations

100

Simplify:

3x(x + 11) 

3x²+ 33x

200

Solve for x: 

6x + 4.2 = 12

x = 1.3

300

Simplify:

33 - 12 + 9(8 + 3) + 7(-3) 

99

400

Emily is going to the store and buys a notebook for $4.56.  She also buys a certain number of erasers for $0.95 each.  She spends a total of $13.11.  How many erasers does she buy? 

9 erasers

500

Solve:

2x - 12 = 3(0.5x + 14)

x = 108

Probability/Statistics

100

There are 3 red, 2 blue, and 3 green marbles in a jar.  What is the probability you reach in and select a green marble?

3 out of 8

or 37.5%

200

What is the probability that I flip a coin eight times and get heads eight times in a row? 

Express your answer as a fraction.  

1 out of 256

300

What city is the capital of Alberta? (Canadian Province)

Edmonton

400

At lunch one day, you have 3 choices of a main course, 5 drink options, and 2 dessert options.  If you pick a main course, a drink, and a dessert, how many different possibilities are there? 

30 possibilities

500

Mark has 11 students in his Fortnite club.  He needs to choose a president and vice president.  How many different possibilities are there for these two positions? 

110 possibilities

Rates/Ratios

100

Kevin can read 216 pages in 12 hours.  How many pages can he read in 1 hour? 

18 pages

200

According to Greg, perfect cherry pies have a ratio of 240 cherries to 3 pies.

How many cherries does Greg need to make 9 perfect cherry pies?

720 cherries

300

The Iberian Peninsula contains which two countries? 

Spain and Portugal 

400

Once a part of the former Soviet Union, three of the four following countries area referred to as the "Baltic States".  Which is not a "Baltic State"? 

Latvia, Lithuania, Estonia, Belarus

Belarus

500

A food store is selling two different sizes of Gatorade.  You can by a 20 ounce bottle for $2.16, or a 32 ounce bottle for $2.99.  Which is the better buy? 

The 32 ounce for $2.99

Percentages

100

What is 25% of 46? 

11.5

200

Mr. Torhan goes to a restaurant and orders a meal for $54.  He plans on leaving a 20% tip.  How much does he leave as a tip?

$10.80

300

What percent is 34 of 200?

17%

400

The five kingdoms consist of protists, fungi, plants, animals, and ________.

Bacteria

or Monera

500

A high school basketball coach orders new jerseys for his team.  They cost $19.95 each and he is ordering 20 of them.  There is a 5% tax on the order.  How much will he pay in total? 

$418.95

Functions

100

Find the slope of the line that passes through the following two points: (-4, 4) and (5, 3)

-1/9

200

What is the x-intercept of the following function?

3x - 7y = 105

(35, 0)

or 

35

300

What is this function in slope-intercept form?

5y + 10 = -2x 

y = (-2/5)x - 2

400

(Random): A cube has a side length of 7 inches.  What is its surface area? 

294in²

500

A function passes through the points (0, -6) and (4, -5).  Find the equation for this function.  Your equation must be in slope-intercept form.  

y = (1/4)x - 6