Answer: Required system of equations that represents the lunch orders for Dory and Nemo is given by

Step-by-step explanation:
Let the cost of soft tacos be 'x'.
Let the cost of Double deckers be 'y'.
According to question, Dory orders three soft tacos and three double deckers for $11.25.

Similarly, Nemo pays $10.00 for four soft tacos and two Double Deckers.

So, cost of soft tacos is $1.25 and Cost of double decker is $2.5.
Hence, Required system of equations that represents the lunch orders for Dory and Nemo is given by
