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Can you guys plz answer this question in order and quickly plz i will give 30 points

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 ?

Ade and abc are similar. which best explains why the slope of the line between points a and d is the same as the slope between points a and b?