Answer:
The correct answer is B.
Explanation:
(7*2)7 = 105,413,504
Its definately not A. because, it would need to be 14 to the seventh.
Its definately not C. because, that is just wrong- your changing it to the 7th power not multiplying it by 7.
D: (7) 7th = 823,543 & (2) 7th = 128 Add that together and you get 823,671 - D is wrong.
B. is right! =) (7) 7th = 823,543 & (2) 7th = 128 MULTIPLY that and you get 105,413,504