Neither is correct. The nearest correct statement that can be constructed from anything close to the given materials is: "Eight and eight are sixteen."
Seventy-eight thousand, two hundred fifteen.
The number "815" is expressed in words as "eight-hundred fifteen" or "eight-hundred and fifteen".
Eight hundred fifteen million, thirty-six thousand.
the multiple of fifteen is 120 = 8x15=120
That would be 7:45, or a quarter to eight.
The number 215.38 is "two hundred fifteen and thirty-eight hundredths." It might be spoken as two hundred fifteen point three eight. The currency value $215.38 is "two hundred fifteen dollars and thirty-eight cents."
Something
Eight hundred fifteen.
3.2
eight dollars and 72.05 cents
120