1. Which is an example of an algebraic expression?
   
   

A.) 4(3 + 8)

B.) 182

C.) 3 – a

D.) 21 • 4

1. Which is an algebraic expression for 5 more than z?
   
   

A.) 5z

B.) z + 5

C.) 5z + 5

D.) 5 – z

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

A.) 4 plus the sum of 21 and a number n.

B.) 4 times the product of 21 and a number n.

C.) 4 times the sum of 21 and a number n.

D.) 4 less than the sum of 21 and a number n. .