We can solve this question by unitary method. The unitary method is a method of finding the value of one unit and then finding the value of the required number of units. While solving a problem it is important to recognize the units and values.
In this question, 10 tacos cost $105. Let's represent the cost of 1 taco as 10 tacos =$ 105 1 taco = 10 = 105 =