Three ways (I think).
6+6
Eight different ways.Eight different ways.Eight different ways.Eight different ways.
It would be 5 ways
39!
Three ways (I think).
Write 2 ways in which whole numbers and decimal numbers are different
6+6
Eight different ways.Eight different ways.Eight different ways.Eight different ways.
It would be 5 ways
They are called roman numerals.
39!
19
As a product of its prime factors: 2*47 = 94
2*2-*2*3 = 24 or as 23*3 = 24
10x5 and 1x50
I'm not sure what you mean. But the factorization of a composite number into prime factors is unique, up to the ordering of the primes.