Clara is planning a party. She has budgeted $30 to spend on sandwiches that cost $2.50 per

Let's break down the amounts Clara has budgeted and how much she spends for \( x \) people attending the party.

**Budgeted Amounts:**
- For sandwiches: $30, cost per person is $2.50
- For drinks: $25, cost per person is $1.50
- For gift bags: $25, cost per person is $3

**Expenses:**
- Amount spent on sandwiches for \( x \) people: \( 2.50x \)
- Amount spent on drinks for \( x \) people: \( 1.50x \)
- Amount spent on gift bags for \( x \) people: \( 3x \)

**Total Spending:**
To find out how much total money is spent, we sum all expenses:
\[
\text{Total spent} = 2.50x + 1.50x + 3x = (2.50 + 1.50 + 3)x = 7x
\]

**Remaining Money:**
Clara's total budget is
\[
30 + 25 + 25 = 80
\]
Therefore, the amount of money remaining after the expenses is
\[
80 - 7x
\]

**Substituting \( x = 5 \) (for 5 friends, including herself):**
Now, substituting \( x = 5 \):
\[
\text{Remaining money} = 80 - 7(5) = 80 - 35 = 45
\]

So, if 5 friends, including herself, came to the party, Clara would have **$45 remaining**.