Answer:
1. 4 2. 2 3. 6
Step-by-step explanation:
2+2= 22
1+1 = 11
3+3 = 33
( ꈍᴗꈍ)
5
Pretty self-explanatory
x+13÷2×2=4×2
x+13=8
x+13-13=8-13
x=8-13
x=-5
length = 13