The area of each 3 ft by 3 ft garden bed is 3 ft * 3 ft = 9 sq ft.
Amy is building 2 of these garden beds, so the total area for these beds is 2 * 9 sq ft = 18 sq ft.
The area of each 4 ft by 3 ft garden bed is 4 ft * 3 ft = 12 sq ft.
Amy is building 2 of these garden beds, so the total area for these beds is 2 * 12 sq ft = 24 sq ft.
The total growing space that Amy will have is 18 sq ft + 24 sq ft = 42 sq ft.
#### 42
The answer is: 42
Below is a math problem. Provide a detailed, step-by-step solution.

### Problem:
Amy is building 2 3 ft long by 3 ft wide garden beds and 2 4ft long by 3 ft wide garden beds.  What is the total sq ft of growing space that she will have?

### Answer:
