Please helpp its extra credit so its not urgent but would be apreciated if you helped!

Find the third,fifth and seventh term sequence described by each rule a(n)=n+1

Which of the following is correct interpretation of the expression -4+13

The amount spent on food and drink by 20 customers is shown below what is the modal amount spent and the median amount spent? 40 25 8 36 18 15 24 27 43 9 12 19 22 34 31 20 26 19 17 28