What is the answer? explain how you got that answer .

A) 72.5 x 0.2 (20%) = 14.5

72.5 - 14.5 = 58

58 x 0.065 (6.5%) = 3.77

58 + 3.77 = $61.77

B) 54.75 x 0.09 (9%) = 4.9275 = 4.93

54.75 + 4.93 = 59.68

59.68 + 5.99 = $65.67

C) 65.67 - 61.77 = $3.90 difference

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.

step-by-step explanation: