Basic Pre-Algebra Expressions

What is the "2" called
 in the following term
   "2x"

• Variable Term
• Variable
• Constant
• Coefficient

• 3, 4, 1 and 7

• z, x and y

• + and -

• 15

• 3

• 2

• -2

• 7

• 2

• 4

• 1

• m

• n

• 5

• 2

• 4

• 3

Evaluate

b² + 4,

when b = 3

• 10

• 12

• 13

• 11

Evaluate when a = 15:

2(a - 5) + 2

• 22

• 27

• 14

• 7

Evaluate 3x + 8

when x=2

• 13

• 14

• 15

• 16

Simplify by using the distributive property.

2(3v - 8)

• 6v-16

• 6v-8

• 6v-6

• 6v+8

Simplify by using the distributive property

9(3x+8)

• 9x + 8

• 27x + 8

• 99x

• 27x + 72