Final answer:
To find the actual height of the rocket, multiply the model's height, which is 26 inches, by the scale factor of 12 feet per inch, resulting in 312 feet.
Step-by-step explanation:
To calculate the height of the actual rocket when the model is 26 inches tall using the scale 1 inch = 12 feet, we multiply the height of the model by the scale factor. So, 26 inches × 12 feet/inch = 312 feet. Therefore, the height of the actual rocket would be 312 feet.