Can anybody help figure out how to write 20 hundredths and 8tenths.

Question

And 48 hundreds,25 tens, 12 ones and 4 tenths.
I have been stuck on these.

Answer 1

20 hundredths = 20 *.01 = .2

8 tenths = 8 * .1 = .8

48 hundreds = 48 * 100 = 4800

25 tens = 25 * 10 = ?

12 ones = 12

4 tenths = 4 * .1 = ?