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A large pool has a faucet to allow water to enter the pool and a drain to allow water to leave the pool.
PLEASE HELP THIS IS AN INTERIM CHECKPOINT TEST <3
Each minute, the faucet allows 10 3/4 gallons of water to enter the pool, and the drain allows 12 1/3 gallons to leave the pool.

What is the change in the amount of water in the pool after 1 1/2 minutes?