Jessica has half of her investments in stock paying a 6% dividend and the other half in stock paying 9% interest if her total annual interest is 630$ how much does she have invested
Let's call the amount Jessica has invested in the stock paying 6% interest x.
The amount Jessica has invested in the stock paying 9% interest is also x.
The interest earned from the stock paying 6% interest is 0.06x.
The interest earned from the stock paying 9% interest is 0.09x.
The total interest earned is 0.06x + 0.09x = 0.15x.
0.15x = 630$.
Dividing both sides of the equation by 0.15 gives x = 630 / 0.15 = <<630/0.15=4200>>4200$.
Therefore, Jessica has 4200$ invested in each stock. Answer: \boxed{4200}.