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5n + 11n

• 16n
• 55n
• 6n

5(a + 6)

• 5a + 6
• a + 30
• 5a + 30
• 5a - 30

3(2c - 5)

• 6c - 15
• 6c + 15
• 6c + 15
• -6c - 15

A letter that represents a number is called a _____.

• variable
• coefficient
• constant
• term

A number with no variable attached is called a  _____.

• coefficient
• constant
• variable
• term

Simplify the following expression:
-10x + 15 - 3x + 2

• 13x² + 17
• -13x² + 13
• -13x + 17
• -7x + 17

Simplify: 
1y + 2x + 3y + 4x

• 1y + 6x + 3y
• -4y + 6x
• 4y + 6x
• 4x + 6y

Simplify the following expression:
19 - ( 3 - 5b)

• 16 + 5b
• 21 + 5b
• 16 - 5b
• 21 - 5b

Simplify ¹/₂x + ¹/₄x + 5 - 3

• ¹/₃ x + 2

• ³/₄ x + 2

• ¹/₄ x - 2

• ³/₄ x - 2

Simplify: 0.5y + 2.3y -8 - 2

• 7.3y - 6

• 2.8y - 6

• 1.8y -10

• 2.8y -10