What’s the answer because I don’t know it!??

1-for what value of x is line a parallel to line b 2-for what value of x is line a parallel to line b

Asystem of equations has 1 solution. if 4x-y=5 is one of the equations , which could be the other equation ?

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 ?