Answer:
a = 20
Step-by-step explanation:
The mean is calculated as
mean = 
=
= 
Then
= 27 ( multiply both sides by 5 to clear the fraction )
115 + a = 135 ( subtract 115 from both sides )
a = 20
Hello there!
Answer:

Step-by-step explanation:
I'll give you a hint. You had to used pemdas stands for: p-parenthesis, e-exponents, m-multiply, d-divide, a-add, and s-subtracting that came from left to right.
First you had to calculate with parenthesis first.


Then multiply by the numbers.




You can also apply by the absolute rule.



Finally simplify by equation.

Hope this helps!
And thank you for posting your question at here on brainly, and have a great day.
-Charlie
I have never converted minutes to inches before loll
Answer:
I am 14 why are you asking