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Let's break down the problem:

Isabella is visiting an amusement park, and the costs are structured as follows:
- A flat admission fee of **$20** to enter the park.
- An additional cost of **$2 per ride**.

### 1. Cost for 13 rides:
The total cost can be calculated by adding the admission fee to the cost of 13 rides.
\[
\text{Total cost} = 20 + 13 \times 2 = 20 + 26 = 46
\]
So, the cost with 13 rides is **$46**.

### 2. Cost for $ r $ rides:
In general, for any number of rides $ r $, the total cost is:
\[
\text{Total cost} = 20 + 2r
\]

Do you need further clarification or additional details?

Here are five related questions to further explore:
1. What would be the total cost if Isabella went on 5 rides?
2. How many rides could Isabella go on if she only had $40 in total?
3. How would the cost change if the admission fee increased to $25?
4. How much would Isabella pay for 0 rides?
5. If the cost per ride doubled, what would the formula for total cost be?

**Tip:** When working with word problems, always break down the costs or variables into smaller, manageable pieces.

Isabella is going to an amusement park. The price of admission into the park is $20, and once she is inside the park, she will have to pay $2 for every ride she rides on. How much money would Isabella have to pay in total if she goes on 13 rides? How much would she have to pay if she goes on r rides?

Learn how to calculate the total cost Isabella would have to pay for visiting an amusement park with a $20 admission fee and $2 per ride. Explore the step-by-step solution for both 13 rides and r rides. Suitable for Grades 6-8.

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