Final answer:
To convert 15.338 miles to feet, multiply by 5280 to get 81083.4 feet, after rounding to the nearest tenth.
Step-by-step explanation:
To convert the height of a volcano from miles to feet, you calculate 15.338 miles × 5280 feet/mile. Rounding the answer to the nearest tenth, the conversion is:
15.338 miles × 5280 feet/mile = 81083,424 feet
After rounding to the nearest tenth, the height of the volcano is 81083.4 feet.
This conversion utilizes the standard fact that there are 5280 feet in one mile.