The formula for perimeter is
Side a x2 + side b x2
So just multiply 18 by two, and subtract it from 108
Answer:
n= 27
Step-by-step explanation:
To solve first subtract the 90-degree angle:
180-90= 90
Then, convert into an equation:
3n+9= 90
Subtract 9 from both sides:
3n=81
Then divide by 3:
n= 27
Hope this helps!
There is no answer because there cannot be one to one function inverse.