AB is 6in. Trust me this is the answer
A) To solve this equation, you would need to fill in the blank with a substitute. Let x represent the unknown number.

=

Next, you would cross multiply.
135 = 45x
Now, the last step would be to isolate the x. To do this, you would divide both sides by 45.
3 = x
= 
b) To solve this equation, you would need to fill in the blank with a substitute. Let x represent the unknown number.

=

Next, you would cross multiply.
18 = 2x
Now, the last step would be to isolate the x. To do this, you would divide both sides by 2.
9 = x
=
I hope this helps!
Non zero digits are always significant. any zeros between two significant digits are significant. a final zero or trailing zero in the decimal portion only are significant.
Answer:
-38
Step-by-step explanation:
1. Isolate y to one side.
y+12=-26
subtract 12 to both sides
y=-38