I'm not sure if that is what you meant in your question but hope my answer helps!
Negative 20. 13 - -20 = 33
113/20 = 33/20 = 100*(33/20)% = 165%
13
The sum of 18 and 15 is 33. 10+10=20 & 8+5=13. 20+13=33.
It is: 13+20 = 33
No. If you had the values 13, 24 and 33, the range would be the difference between the highest and lowest values, 13 and 33. 33 - 13 = 20 This gives you a range of 20, which isn't an average.
20.
33
30+3=33 27+6=33 20+13=33 15+18=33 31+2=33 20+10+3=33 2+15+16=33
Well either 1 13/20 or 33/20
It is 1 13/20.
-1 and 13/20 = -33/20