I believe it is Since the square root of 9 = 3 and the square root of 16 = 4 it is known the the square root of 12 is in between 3 and 4. Really hope this helps!
Evan is not correct. While 25 is 125% of 20, it was <em>not</em> 125% more. That would be adding on to the 100% already there, for a total of 225%. It's actually only 25% more because of this.
Answer : 1,878.50 - 1,075.50= 803 then the second step you keep subtracting 73 to 803 until you get 0 and you get 11