Answer
Total cost: $1248+96.72+15.40=\$1360.12$
Work Step by Step
We see from the table that the excise tax is a flat fee of $\$15.40$ per person for international air travel.
Next, we find the sales tax on $\$1248$ using the given rate of $7\frac{3}{4}\%$ (0.0775):
$0.0775*1248=\$96.72$
Thus the total cost is:
$1248+96.72+15.40=\$1360.12$