Answer:
18
Step-by-step explanation:
the answer is 18 because you have to subtract 16-1= 15 then add 15+3=18
Perimeter = 42 cm
XY = 8 cm because ΔWXZ ≅ ΔYZX
Perimeter = 8 + 14 + 20 = 42 cm
3x+5=3x+5
they are both the same line
about 31 percent