B: 80
All the sides add up to 20 so adding all four sides make 80
All you do is divide -12/20 by 4/4 which is -3/5
39 dont forget the squared thigy
Let n be the first even integer, and n+2 will be the second even integer. (Why? Think 2 and 4, 2+2=4. This is the case for every consecutive even integers).
n + 3(n+2) = 54
n + 3n + 6 = 54
4n = 48
n = 12, n+2 = 14
The answer should be 4x+5
Please let me know if I’m wrong!