Simplify:
3(9 + 2d) + 4d 

• 18d+10d
• 18d-10d
• 27+10d
• 37d

Simplify the following expression:

9x + 5(x + 3)

• 9x + 15

• 45x + 27

• 14x + 42

• 14x + 15

Simplify the following expression:

2x + 3(x + 3)

• −5x + 9

• 5x + 9

• 5x + (−9)

• −5x +(−9)

Simplify:
3(9 + 2d) + 4d 

• 18d+10d
• 18d-10d
• 27+10d
• 37d

A coefficient is __________.

• the variable
• a constant
• an exponent
• the number that comes before the variable

A constant term has ______.

• no exponents
• no variables
• no numbers
• no letters

A variable can be _______?

• Any number

• Any letter of the alphabet

• only X

• only 1

What is the coefficient in the algebraic expression?

• 4x

• 4
• 5
• 9

Which of the following is equivalent to 2(c - 8)?

• 2c - 16
• 2c + 16
• 2c - 8
• c - 16

Which of the following is equivalent to 4(2x + 3)

• 8x + 12
• 8x + 3
• 8x - 12
• 20x