The answer is 12.1, add both 4.5 and 7.6 and you get 12.1
Okay this is what i got it might be wrong but i did it and then looked it up to make sure i was right & it showed the same answer!!
3.55 * 1.6= 5.68!!
46 can be factorized into 23 and 2. Since both of these are prime numbers, the prime factorization is done.