Gio mows lawns for $25 each. He already has $250 in his bank account, but is trying to save $900. How many lawns will he need to mow to reach his goal?(

1 answer

Gio needs to save $900, and he already has $250, so he needs to save an additional $900 - $250 = $<<900-250=650>>650.
Each lawn Gio mows earns him $25, so he will need to mow $650 / $25 = <<650/25=26>>26 lawns. Answer: \boxed{26}.