How can a 12 year old kid make 1500 dollars in 1 month?

cut 15 lawns at 10 dollars a lawn.

that would only make 150$

so 30 lawns at 10$ each or 15 lawns at 20$ each

or

Garden for $10 then if you do 12 gardens a day you'll get $120 then the next day do 12 gardens again and you'll have more then $150 you'll have $240