To represent the situation described in the scenario, we first need to understand the components of the costs. The total cost of the birthday party includes a fixed cost of $150, and variable costs that depend on the number of children (c) and adults (a):
- The cost per child is $10.50, which gives us \(10.50c\).
- The cost per adult is $5.50, which gives us \(5.50a\).
- The total cost must not exceed the budget of $300.
The inequality that represents this situation can be constructed as follows:
- Start with the total cost: total fixed and variable costs. \[ 150 + 10.50c + 5.50a \]
- Set that total cost less than or equal to the budget of $300: \[ 150 + 10.50c + 5.50a \leq 300 \]
- To isolate the costs associated with children and adults, rearrange the inequality: \[ 10.50c + 5.50a \leq 300 - 150 \] \[ 10.50c + 5.50a \leq 150 \]
However, since we're looking for the inequality in terms of the total cost including the fixed cost, the correct representation from the options given is:
10.50c + 5.50a + 150 ≤ 300
The correct answer is: 10.50c + 5.50a + 150 ≤ 300.