GM those lines for $25 each. He already has 250 in his bank account but he's trying to save $900. How many laws will he need to mow to reach his goal?

To determine how many laws he will need to mow to reach his goal, we need to find the difference between his savings goal and his current bank account balance.

Savings goal: $900
Current bank account balance: $250

Difference: $900 - $250 = $650

Since he earns $25 per lawn, we can divide the difference by the earnings per lawn to find the number of laws he needs to mow.

Number of laws to mow: $650 / $25 = 26

Therefore, he will need to mow 26 laws to reach his savings goal of $900.