t = the cost of the ticket which is $72 without tax.
The equation s(sale after tax) = t + 0.03t, is for the ticket after tax, represented as s.
Now apply the equation to find the cost for the ticket after tax :
[tex]s= 72 + (0.03)(72) = 74.16 \: dollars[/tex]
So the final answer is $74.16
I hope this helps.
