Answer:
Joseph will have 265 coins and Molly will have 275 coins after ten months.
Explanation:
Joseph already has 15 coins and adds 25 coins after each month. So after ten months the total number of coins Joseph will have is [tex]15+25\times 10=265[/tex] coins.
Molly already has 25 coins and adds 25 coins after each month. So after ten months the total number of coins Joseph will have is [tex]25+25\times 10=275[/tex] coins.
So, Joseph will have 265 coins and Molly will have 275 coins after ten months.