Question

How did you fine the answer. The answer that I have is correct but how do you get to it . I need 1a 1b and 2

Answer 1

1a:

580 - (580 × .1) - 20

580 - (58) - 20

522 - 20

502

1b:

990 - (990 × .25) - 20

990 - (247.5) - 20

742.5 - 20

722.5

I'm not sure how to solve #2.