The answer is 59. First you multiply 4 by 5 (20), then subtract 20 from 79 (59).
Note that both 5 and 4 are exponents, and their product is 5*4=20, or 4*5=20. Thus,
(3^5)^4 is equal to (3^4)^5
Review:
(a to the power b)to the power c = a to the power bc.
Thus, (3 to the power 5)^4 = 3^20; the same is true if you reverse the positions of the 5 and the 4.
The answer would be the following:
9 x - 4 = 4x + 16
Well if your talking about everyday than the answer is 278,860
If your talking about each week than the answer is 278,860.764
