At the gift shop, they sell small greeting cards and large greeting cards. The cost of a small greeting card is $2.10 and the cost of a large greeting card is $4.15. How much would it cost to get 2 small greeting cards and 3 large greeting cards? How much would it cost to get x small greeting cards and y large greeting cards?

To solve the problem, we can calculate the total cost for the specified quantities of greeting cards as well as the general formula for any given number of small and large greeting cards.

### 1. Cost of 2 Small Greeting Cards and 3 Large Greeting Cards:
- **Cost of 2 small greeting cards** = $2 \times 2.10 = 4.20$ dollars
- **Cost of 3 large greeting cards** = $3 \times 4.15 = 12.45$ dollars

**Total cost** = $4.20 + 12.45 = 16.65$ dollars

### 2. General Formula for the Cost of x Small Greeting Cards and y Large Greeting Cards:
- **Cost of x small greeting cards** = $2.10 \times x$ dollars
- **Cost of y large greeting cards** = $4.15 \times y$ dollars

**Total cost** = $2.10x + 4.15y$ dollars

Would you like to go into more details or have any questions?

Here are 5 related questions you might be interested in:
1. What if the cost of small greeting cards increases by $0.50, how would the total cost change?
2. How would you calculate the cost for 10 small greeting cards and 7 large greeting cards?
3. What if a discount of 10% is applied to the total purchase, how would you adjust the calculation?
4. How do you find the total cost if you buy a different number of cards every week for 4 weeks?
5. How would you express the total cost if the prices of small and large greeting cards are represented by variables?

**Tip:** When working with multiple items and costs, always identify the individual cost components and then sum them up for the total. This approach can be extended to any number of items or changes in prices.

Learn how to calculate the total cost of purchasing small and large greeting cards with a step-by-step solution. This problem covers key arithmetic concepts and linear equations, ideal for students in Grades 5-7.

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