Rudy and Ritchie Ling ran a camp this summer for children in their neighborhood. Rudy spent $135 on supplies and earned $250 before expenses. Ritchie spent $140 on supplies and made $210 before expenses. What is the combined revenue for the two brothers

what is the question here

step-by-step explanation:

3

step-by-step explanation:

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.