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The problem presents a function that models the remaining balance $ B(x) $ on Henry's gift card after purchasing photo prints at $0.75 each. The initial balance on the card is $350.00, and the function given is:

\[
B(x) = 350.00 - 0.75x
\]

where $ x $ represents the number of photo prints Henry purchased.

You are asked to find the remaining balance on the card after Henry buys 30 photo prints. To solve this, substitute $ x = 30 $ into the function:

\[
B(30) = 350.00 - 0.75(30)
\]

Let me calculate that for you.After Henry buys 30 photo prints, the remaining balance on his gift card is **$327.50**.

Would you like further explanation or have any questions? Here are five related questions you might find useful:

1. What would the balance be if Henry bought 50 photo prints?
2. How many prints can Henry buy with his remaining balance of $327.50?
3. What is the maximum number of prints Henry can buy with $350?
4. How would the equation change if each print cost $1 instead of $0.75?
5. How much would Henry spend if he bought 40 prints?

**Tip:** When solving problems with linear functions, substitute known values into the equation to quickly find unknowns.

Henry recibió una tarjeta de regalo de $350.00 para un centro fotográfico. Él la utilizó para comprar impresiones fotográficas a 75 centavos cada una. ¿Cuál es el saldo restante en la tarjeta si Henry compró 30 impresiones?

Learn how to calculate the remaining balance on a gift card after purchasing photo prints. This problem utilizes the linear function B(x) = 350.00 - 0.75x, where x is the number of prints bought. Perfect for middle school students learning linear functions.

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