Answer:
The workers planted 47 pine trees today.
Step-by-step explanation:
At the final of the day, there are 74 pine trees, and at the beggining of the day there were 27 pine tree. So, we need to subtract the amount of pine trees at the beggining of the day from the amount of pine trees at the final of the day and so, we are going to obtain the amount of pine trees plant today.
So,
74 - 27 = 47