Andre went to purchase sporting goods. His total was $42. Due to a sale he saved $4. What percentage of the total regular price was his savings?

To figure this out, simply divide 4 by 42

4/42 = 0.0952

0.0952 x 100 = 9.52%

9.52% of the regular price were savings :D

i believe that the answer is

b. y-1=-2(x-4)

hope this !