The mean is found by dividing the sum of all terms by the number of terms present in the set.
Set up the equation:

The mean of this sequence is
5.
Answer:
u may need a calculator
Step-by-step explanation:
2-3n=n+10
so two less than three is subtracting two minus three. than three times a number; we dont know that number so we put it as a variable. in this case n. so they are multiplying right now. "is" means equals. than the same number, which is n, plus 10. so add ten with n.
Determining whether two quantities are in a proportional relationship. Decide whether two quantities are in a proportional relationship, e.g., by testing for equivalent ratios in a table or graphing on a coordinate plane and observing whether the graph is a straight line through the origin.
Answer:
Ask your teacher because i don't know how to do it or i would help sorry
Step-by-step explanation: