Question

Write the product of a number and 21 as an algebraic expression

Answer 1

21n=

n-number and since its a number (n) and 21 you would put 21n

Answer 2

`\boxed {\tt 21n}`

Explanation:

We want to write the product of a number and 21 as an algebraic expression. Let's define "a number" as the variable n.

We know that "product" means multiplication. The product of a number, n, and 21 is equal to multiplying n and 21.

`n*21`

21 and n can be flipped due to the commutative property of multiplication.

`21*n`

`21n`

The product of a number and 21 is 21n.