To find the weight of a cheetah that runs 7 miles using the given line of best fit \( y = 195 - 7.3x \), we can substitute \( x = 7 \) into the equation:
\[ y = 195 - 7.3(7) \] \[ y = 195 - 51.1 \] \[ y = 143.9 \]
The calculated weight of the cheetah that runs 7 miles is 143.9 pounds.
Now, regarding extrapolation or interpolation: The given data includes miles run values of 1, 3, 5, 8, and 10. Since 7 miles is not part of the dataset and falls outside of the range of the given data, this would be considered extrapolation.
Thus, the answer is:
143.9 pounds and extrapolation.