Digraphs are voiced combinations of two or three consonants. t f 

This sentence is false.
Digraphs are indeed combinations of letters, however, they are combinations of only two letters (di- means two in Greek). Additionally, these combinations don't have to be only consonants, but rather vowels as well. Combinations of two or three consonants are called blends, not digraphs. 

Fill with evil is the answer

You would multiply 45 by 31 for 45 minutes for 31 days your answer would be 1395 minutes in the month of july