The temperature C (in degrees celsius) in an artificial habitat after t hours is given in the table. (A) Find the interpolating polynomial for this table. (B) Use the interpolating polynomial to...

The temperature C (in degrees celsius) in an artificial habitat after t hours is given in the table.

(A) Find the interpolating polynomial for this table.

(B) Use the interpolating polynomial to approximate (to the nearest tenth of a degree) the average temperature over this 4-hour period.