Y= 10x
y: number of cm
x: number of mm
Answer:

Step-by-step explanation:
use
a^2 +b^2=c^2
(16x^2+4x-4x-1)-3=15x^2
16x^2-1-3=15x^2
16x^2-4=15x^2
X^2=4
X=+or-2
have a good night :)
Step-by-step explanation:
17-19=2 20-22=3 23-25=5 26-28=6
It’s negative 16 so i guess it’s a negative integer