Please help! 15 pts! Ivanna, Andrea, Tabitha and Mary are sisters. Their father tells them that they will not be allowed to travel to Hawaii by themselves until their average age is 21. Right now, their ages are 19, 15, 14, and 12. In how many years will they be able to go to Hawaii?

Due soon can you write/type out the answers, show your work. a geyser sends a blast of boiling water high into the air. during the eruption, the height h (in feet) of the water t seconds after being forced out from the ground could be modeled by h=-16t^2 + 65t1. what is the initial velocity of the boiling water? 2. what is the max height of the boiling water? 3. how long is the boiling water in the air?