$\"\"$

Let a be the number of shares of able records and b be the number of shares of best bakes.

The dividend of one share of able records is 1.20 dollars and the dividend of one share of best bakes is 1.30 dollars.

The dividend of a share of able records is 1.20a dollars and the dividend of b share of best bakes is 1.30b dollars.

The total amount earn on these stocks is at least 9000 dollars.

The word $\"\"$ at least $\"\"$ means $\"\"$ greater than or equal $\"\"$ and its symbol $\"\"$ .

Therefore, this situation represent the inequality $\"\"$ . $\"\"$

The inequality is $\"\"$ .