Equations and Expressions Review

You have an algebraic number that represents the total amount of money you will have after saving $15 each week, starting with $50. The number is 50 + 15w. Identify if this is an expression or equation and solve for the total amount of money if w = 4 weeks.

• Expression
  Total amount: $110

• Equation
  Total amount: $110

• Expression
  Total amount: $200

• Equation
  Total amount: $200

A rectangle's area is given by the algebraic number of 6w², where w is the width. Identify if this is an expression or equation and find the area if the width w = 2.

• Expression
  Area: 24 square units

• Equation
  Area: 24 square units

• Expression
  Area: 12 square units

• Equation
  Area: 12 square units

Solve the algebraic number of 2 x (y² - 1) = 6. Is this an expression or an equation?

• Expression
  y = 2

• Equation
  y = 2

• Expression
  y = 1

• Equation
  y = 1

6y − 2z

• Expression

• Equation

• A
• B
• C
• D

• A
• B
• C
• D

• ABC
• BDE
• CE
• BF

• 2   1/4
• 9 1/4
• 1   3/4
• 16  1/4

• A
• B
• C
• D

• X=12   Y= 18
• X=15   Y=18
• X=2     Y= 15
• X= 4    Y=12