Asubmarine descended 1200 meters below the surface of the water. it then rose 800 meters and then descended 250 meters. what was the submarine's net gain or loss in altitude?

–1200 m

–650 m

–400 m

650 m

Finally, the arena decides to offer advertising space on the jerseys of the arena's own amateur volley ball team. the arena wants the probability of being shortlisted to be 0.14 what is this as a percentage? what is this as a fraction? what is the probability of not being shortlisted? give your answer as a decimal.