How to write 800+10+4 in standard form

Are you guys willing to me with these last 8 questions on my homework for math reply to this question that i posted

Ken earned $128 from his part-time job this summer. he spent 25% of his money on games. he is going to donate 1/6 of the remaining money to charity. how much money will the charity receive?

How do i answer this i do not get this at