Day 1=0.01
Day 2=0.02
Day 3=0.04
This is geometric progression with r=2
So
Sn= G1(r^n-1)/r-1
Where G1= 0.01$ and r =2
S30 = 0.01 (2^30 -1)/2-1
= 0.01 (2^30 -1)
= 10737418.23
That means my monthly salary is $ 10737418.23
I will take the job.... provided that it is not illegal job