###Human: Mike buys 6 rose bushes at 75 dollars each, 2 of them are for his friend and the rest are for him.  He also buys 2 tiger tooth aloes for 100 dollars each.  How much money did he spend on plants for himself?, ### Assistant: He bought 6-2=4 rose bushes for himself
The rose bushes for himself cost 4*$75=$300
He also spent 2*$100=$200 on aloes.
He spent a total of $200+$300=$500 
 So the answer is :  500