(28 : 100) *6 = 1.68 (tax)
28 + 1.68 = 29.68 (total cost)
The answer is (0,0) My dude
When you find the (gcf) you start like putting each others factors together trying to see, if there are any same numbers, you keep piling, and when you come up to the biggest you can get up to, then that is your answer! if you do this one correctly, you should get the answer as 15
the answer would be 15.
Hope that this would help you! =)
