A large pool has a faucet to allow water to enter the pool and a drain to allow water to leave the pool. Each minute, the faucet allows 10 gallons of water to enter the pool, and the drain allows 12 gallons to leave the pool.
What is the change in the amount of water in the pool after 1 minutes?
Enter your answer as a simplified mixed number by filling in the boxes

Solve the system of equations y= 3/2 - 1, -x+ y =-3

The avenues in a particular city run north to south and are numbered consecutively with 1st avenue at the western border of the city. the streets in the city run east to west and are numbered consecutively with 1st street at the southern border of the city. for a festival, the city is not allowing cars to park in a rectangular region bordered by 5th avenue to the west. 9th avenue to the east, 4th street to the south, and 6th street to the north. if x is the avenue number and yis the street number, which of the following systems describes the region in which cars are not allowed to park? 5th ave 9th ave

Solve the triangle. a = 21°, c = 105°, c = 5