The total amount each friend pays is the sum of the cost of the ticket, snack, and drink. The ticket costs d dollars, the snack costs 1.5 * d dollars, and the drink costs d - 1.25 dollars. Therefore, the total amount each friend pays is represented by the expression:
d + (1.5 * d) + (d - 1.25)
Which simplifies to:
4.25d - 1.25
This expression represents the total amount each friend pays.