Answer:
D
Step-by-step explanation:
Remark
First characters: 6 choices
Second two characters: 25 * 26
Third set of 2: 10 * 10 = 100
6 * 25 * 26 * 100 = 390000
19
25.6
Add 6.4 to all the sides and add them all together-
6.4+6.4+6.4+6.4 = 25.6
B (1,5)