40x - 24 - 33x - 77 = 102
40x - 33x = 102 + 24 + 77
7x = 203
x = 29
6.213 as a mixed number would be 6 and 213/1000.
all you do to convert it to a mixed number is look at how many numbers are after the decimal.
since theres 3 numbers, that means it would be in the thousands place
You would do $32/ the price of the train tickets.
400,7,000 i think im not quit sure i dont know