The answer would be 17. to get this, i subtracted 7 from both sides, which will give you 0 and 17. 17 is 17inches/units from 0. kinda an easy way to do this :P
You a line the decimal points right above each other and add the .45 to .8
I can't really explain it
see the picture
Answer: least : -1/4 middle: -0.15 greatest: -0.6
if it’s incorrect change places with the 1/4 or 0.15