A Military Radar Is Measuring the Distance to a Jet

Multiple Choice

A military radar is measuring the distance to a jet fighter.The radar has received the following measurements:
$$\begin{array} { l l l l l l l } \text { time } t \text { (minutes) } & 1 & 2 & 3 & 4 & 5 & 6 \\\text { distance (miles) } & 280 & 289 & 294 & 299 & 308 & 310\end{array}$$
Using a least squares fit to the data,extrapolate to the nearest tenth of a minute when the jet will be 345 miles away?

A) 10.4 minutes
B) 13.7 minutes
C) 12.9 minutes
D) 11.5 minutes