NEED HELP!! Please help really hard for me because i´m dumb sometimes.

It is C. None of the above

Step-by-step explanation:

B. you're adding 1.5 when you should be subtracting it

A. two negatives make a positive so you would be adding

*again you should be subtracting*

the answer is c

step-by-step explanation: i took a test with this question on it

answer: the proof is mentioned below.

step-by-step explanation:

since, given:   lines bc = ef

prove:   lines ac > ef

          statements                                           reason

1. bc=ef                                           1. given

2. ac= ab+bc                                 2. because b is the point between the  

                                                            line segment ac

3.   ac > bc                                       3. because if a line segment is equal to

                                                          the sum of two line segments then it is

                                                          always greater then each of these

                                                          individual line segments

4. ac > ef                                         4. by equality property.