Business Math-Unit 1 Review

Write a variable expression to represent the phrase: The product of 72 and some number y.

• 72 + y

• 72 - y

• 72y

Which of the following is an example of an expression?

• 5 + y

• 3 = x

• 5c + 6 = 11

Write a variable expression to represent the following phrase:

The difference of a number and 1

• 1 - x

• x - 1

• 1x

• -1x

Evaluate the algebraic expression if m = 3 and n = 7. Show your work on paper.

n + 9

• 16

• 12

• 13

• 14

Find the value of the numerical expression. Show your work on paper.

(7 + 4) × 3 - 2

• 11

• 31

• 10

• 34

Write the phrase as an algebraic expression.

four times as many lemons

Write the phrase as an algebraic expression.

5 hours less than Cesar worked

x - 62 = 123
How should you show your work to isolate the variable and solve the equation?

• Add 62 to each side. 
• Subtract 62 from each side.
• Multiply each side by 62.
• Add 123 to each side.

Solve for w:
-6w + 1 = -11

• 2
• 1.2
• 12
• -2

The steps in solving 5b - 6 = 24 are: 

• Add 6 to both sides and divide both sides by 5
• Add 6 to both sides and multiply both sides by 5
• Subtract 6 from both sides then multiply both sides by 5
• Subtract 6 from both sides then divide both sides by 5