let x =the number
Step-by-step explanation:
81+x=3x-39
group like terms
81+39=3x-x
120=2x
120/2=2x/2
60=x
therefore x =60
Answer:
8.944
Step-by-step explanation:
To find the missing Length, Use Pythagorean Theorem!





so it is approximately 10 but not quiet
hope this helps
Answer:
round
Step-by-step explanation:
hope I helped