Sales in the printing business have doubled for James in each of the last three months. During the last month, he made a profit of $520. If the pattern continues, what will be his three month total profit at the end of the next three months?
The equation for his currnet sales can be as follows: x=520*2^n n is the current month We are looking for the sum of next 3 months, so n+1, n+2 and n+3.
