That is correct.
Thirty-seven and twelve thousandths.
Twelve and thirty-seven ten-thousandths.
Twelve and thirty-seven ten-thousandths.
No, thirty-seven is a prime number. It only has two factors: one and itself.
Twelve and six hundred thirty-seven thousandths.
1200 and 3700 8x+3y
Seven hundred threety thousand eight hundred thirty nine
7.712
Twelve thousand, four hundred ninety-five and thirty-seven hundredths.
Seven hundred thirty thousand, eight hundred twelve.
Seven hundred and thirty thousand, eight hundred and twelve