Which of the following expressions is in simplified form? choices 1n + 2.9n 4w - 5 -2 + 1.4m + 0.5 9j - 3 - j

Hello! And thank you for your question!

For this to see which is in simplified form. We will check them. All four!

1n + 2.9n (not simplified):

For this you can simplify 1 x n to n:

n + 2.9n

Simplifies to:

3.9n

4w - 5 (simplified):

For this equation we can not combine like terms anymore. So this is simplified.

-2 + 1.4m + 0.5 (not simplified):

For this we can combine like terms:

1.4m + (-2 + 0.5)

Then simplify:

1.4m - 1.5

9j - 3 - j (not simplified):

First we can combine like terms:

(9j - j) - 3

Then Simplify:

8j - 3

Final

4w - 5