Importance lies in the fact of understanding the actual requirement of the problem given. Based on the given information's the answer to the question can be easily determined.
The cost of 14 pounds is = 2.99 dollars
Then
The cost of 1 pound is = (2.99/14) pounds
= 0.21 dollars
So the unit rate is 0.21 dollars per pound. Other than the calculation part, i hope there is nothing serious to understand about the procedure of solving this problem. This procedure can be used by you for solving similar problems in future without taking any help from outside.
