9) Brennen is rock climbing and is 15 feet above ground level. He descends 4 feet, climbs back up 5 feet, and then descends 1 foot. What elevation is Brennan at after
he is finished climbing?

15 feet above ground.

Step-by-step explanation:

15 feet - 4 feet = 11 feet

11 feet + 5 feet = 16 feet

16 feet - 1 foot = 15 feet

(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