Answer:x 31.5 mm
Step-by-step explanation:I hope this helps
B.
You would first have to add 9 to each side so that the equation equaled 0. Then you could pull these numbers.
All the angles added up = 360°
46 + 4x - 2 + 9x + 6 + 8x - 5 = 360
21x + 45 = 360
21x = 315
x = 15
Let me know if you have questions.
16
Because...
4 cats/ 5dogs = x cats/ 20 dogs
Therefore you can conclude it is 16 cats in total
