Are these expressions equivalent? (-2.6) + (-2.9) + (-7.1) and - (2.6+2.9+7.1) Why or why not?

Yes

Step-by-step expiation:

Negative plus negative equals a positive but you add the negative to a positive the number becomes a negative. and the other side everything is

positive in parentheses followed by a negative so they are equal.

yes, that is an examle o the distributive proeprty

i we take the 2nd phrase

- (2.6+2.9+7.1) = -1 (2.6+2.9+7.1) = -1 (2.6) - 1 (2.9) - 1 (7.1) = - (2.6) - (2.9) - (7.1) = (-2.6) + (-2.9) + (-7.1)

yes because of distributive property