What is the minimum number of 60 passenger buses needed to transport 200 students?

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 ?

I’m really confused and need to learn this

y=2x−1 5x−4y=1 is (1,1)(1,1) a solution of the system?