Question

Which expression is equivalent to −2.6+(−2.9)+(−7.1) ?

Answer 1

The answer is C, -(2.6+2.9+7.1).

Answer 2

Hello there!

The answer to your question is:
-(2.6+2.9+7.1)

This is because that negative sign can be distributed into the parentheses to get the same expression.
-2.6-2.9-7.1=-2.6+(-2.9)+(-7.1)

I hope this helps!
-HuronGirl