What is the value of a?

Answer: 9
Step-by-step explanation: I am not sure if this is the correct answer! SORRY
Answer:
In math, value can either refer to the result of a calculation or a variable or constant. Mean value is the average of a set of numbers. You can find this by adding the numbers in a set and dividing it by the number of numbers in that set. ... Value can also refer to worth of an object in math.