==> [ 3x - 8 ]
Three and eight times a number.
Three hundred eight.
Twenty-three and eight-tenths.
If you mean three and eight tenths then it is 3 and 8/10 as a mixed number
You would write it like this: 308,000,000,000
3n
Seven point four three eight.
3.8
7
125
three tenths is 3/10 eight tenths is 8/10
Twelve and eight hundred seventy-three thousandths.