An item cost $500 before tax, and the sales tax is $45 ..find the sales tax rate write in percentage

9%

Step-by-step explanation:

An item cost $500 before tax,and the sales tax is $45.  Find the sales tax rate as a percentage.  

Represent this tax rate by r.  Then r = $45 / $500 = 0.09, which is equivalent to the percentage 9%.

p

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.