The answer is 36/13 which is approx 2.77
13
13 add something equals 30 = 43
12+9=21 21+15=36 36+13=49 49+6=55
52
3+4+6 easily equals 13. There is a few ways to do it. 3+4 equals seven. Then add 6 and you get 13. 3+6 equals nine. Then add 4 and you get 13. 4+6 equals ten. Then add 3 and you get 13.
Add 12 to each side: a = 36 + 12 = 48
First, you would add 13+13, which equals 26. Then you would subtract 26-13 which equals 13. So the problem would be 26-13=13.
36 yards
Just add 13 to the number
36
11+12+13=36