Supplementary means they add up to 180°.
180-112= 68
The answer is 68°
(s÷t) - r is the correct expression.
If you set it up in cross multiplication then you would have (x/100 = 45/54) then cross multiply so then i would look like this (54x/4,500) so from there you would divide 54 from 4,500 i hope this helps in any way oh and it should come up to be 83.3333333 which would be 83% lol
It is. 7.17285714285714 you can stop at the thousands