Chapter 1: Variables, Expressions and Integers
Q2.
Compare and contrast the expressions .
Q2.
Baking You are baking cookies that require 6 cups of cereal for each batch. Use the nutrition facts below to find the number of boxes of cereal you will need to make 3 batches of cookies. Then determine how many cookies you can make.

Q 20.
Copy and complete the statement using < or >.
Q21.
Use a number line to find the sum.
8 + (– 2)
Q22.
Evaluate the experssion when
localid="1647950249864"
Q28.
Free Diving Free diving means diving without breathing equipment. The graph shows the position with respect to sea level for five record free dives.
a. Find the mean of the positions.
b. Find the median of the positions.
c. Compare Does the mean or the median represent a lower position?

Q29.
Evaluate the expression when .
localid="1648815401674"
Q29.
Simplify
– 5 (–10)( – 25)
Q29.
Find the sum.
– 72 + (– 30)
Q3.
Use a number line to find the sum.
– 9 + 11