
9514 1404 393
Answer:
 3t -4
Step-by-step explanation:
If t represents their normal travel time (in hours), Anna and Tamara traveled 2t on the third day, and t-4 on the fourth day.
The number of hour traveled in the last two days (day 3 and day 4) are ...
 2t +(t-4) = 3t-4