(75 points). how do you solve quadratic-quadratic systems? describe the steps of how to do it with an example. i can't find any real information on how to solve them. (below is an example of what i need to solve to pass my test).

Pepe and leo deposits money into their savings account at the end of the month the table shows the account balances. if there pattern of savings continue and neither earns interest nor withdraw any of the money , how will the balance compare after a very long time ?

Agrid shows the positions of a subway stop and your house. the subway stop is located at (-5,2) and your house is located at (-9,9). what is the distance, to the nearest unit, between your house and the subway stop?

Find the value of x to the nearest tenth.