Answer:
20=4*5
Step-by-step explanation:
There are 479001600 different ways the first 12 letters of the alphabet can be arranged.
11: 4,874 > 4,784 > 4,687
12: 8.09 > 8.057 > 8.023
13: 15.820 > 15.280 > 15.000
14: 43,628 > 40,628 > 34,628
15: 395.050 > 395.009 > 395.005
No because if you do -5+10= it equals positive 5 and not a negative number.
