Multiple Choice

Which is an example of an algebraic expression?
(1 point)
Responses

4(3 + 8)
4(3 + 8)

182
18 2

3 – a

21 • 4

4(3 + 8)

Multiple Choice

Which is an example of an algebraic expression?
(1 point)
Responses

4(3 + 8)
4(3 + 8)

18 2

3 – a

21 • 4

4(3 + 8)

Which is an algebraic expression for 5 more than z?

(1 point)
Responses

5z
5 z

z + 5

5z + 5

5 – z

z + 5

Which word phrase can be used to represent the algebraic expression 4(21 + n)?

(1 point)
Responses

4 plus the sum of 21 and a number n

4 times the product of 21 and a number n

4 times the sum of 21 and a number n

4 less than the sum of 21 and a number n

4 times the sum of 21 and a number n

8 less than the product of 12 and a number x" can be described by which algebraic expression?

(1 point)
Responses

12x – 8

8 – 12x

12 – 8x

8x – 12

12x - 8

Suppose you are building a brick border for a garden by stacking rows of bricks on top of each other. If the height of each brick is 2.5 inches and r represents the number of rows, which algebraic expression would represent the height of the brick wall?

(1 point)
Responses

2.5 + r

2.5r + r

2.5

2.5r