Answer: The pair of equations required this the given question is x+y=100 and 3x+6y=396
Explanation:
If x denotes the number of burritos and y denotes the number of salads sold. then,
1. x+y =100 (as there are a total of 100 meals sold)
2. 3x+6y=396(as the cost of each burrito is $3 and cost of each salad is $6, the total cost of the meal is $396)
Hence, The pair of equations required this the given question is x+y=100 and 3x+6y=396