A rule in terms on n for the sum of the first n even positive integers is ?

The sum of the first n even integers is n(n + 1).

Step-by-step explanation:

Hope this helps. :D

step-by-step explanation:

(2,20) means that the 2 is 2 hours and 20 is 20$. so there both 20$ for 2 hours only the same price. like it says. so, the dunk tank and the bounce house are the same price (20$) for the same amount of time (2 hours).

hope i