To interpret the expression \(4(d \cdot 1.5d \cdot d - 1.25)\) as the amount friends pay altogether in dollars, let's break it down:
1. \(d\) represents the number of friends.
2. \(1.5d\) represents 1.5 times the number of friends, possibly indicating the cost of an activity or item per friend.
3. \(d - 1.25\) represents the number of friends minus 1.25, possibly indicating a discount or adjustment to the total cost.
Multiplying these terms together and then multiplying by 4 gives the total amount paid by all friends.
For example, if \(d = 10\) (there are 10 friends):
\[4 \times (10 \times 1.5 \times 10 - 1.25)\]
\[4 \times (150 \times 10 - 1.25)\]
\[4 \times (1500 - 1.25)\]
\[4 \times 1498.75\]
\[5995\]
So, if there are 10 friends and each friend pays $1.50, the total amount paid altogether would be $5995 after a discount of $1.25.
