The 6 terms of the series are
... 15, 14, 13, 12, 11, 10
The sum of them is 75.
_____
You could make use of the formula for the sum of the terms, or you could work out the sum from the given expression. It is easier just to list the terms and and them up.
Answer: x>-2
Step-by-step explanation:
To find the values of the inequality, you treat this like it would be any other equation.


Answer:
every year the branches increase 75%
Step-by-step explanation: