Answer: The cost of soft tacos is $1.25 and the cost of Double deckers is $2.5.
Step-by-step explanation:
Let the cost of soft tacos be 'x'.
Let the cost of double deckers be 'y'.
According to question,
From eq(1), we can get that
Put it in the equation(2), we get
And put the value of x in
Hence, the cost of soft tacos is $1.25 and the cost of Double deckers is $2.5.