https://file.aiquickdraw.com/mathbot/file/1727760335752aqiiin5t.jpg

Let's go through the solutions of the math problems shown in the image:

### Problem 13:
**Joshua earns $690 per week and gets a 3% pay rise. How much does he now earn per week?**

- The given solution is:
  \[
  690 \times \left(1 + \frac{3}{100}\right) = 690 \times 1.03 = 710.70
  \]

  So, after the 3% raise, Joshua now earns **$710.70** per week.

### Problem 14:
**Alexandra buys football boots at a 25% off sale. The original price is $250. What is the sale price?**

- The given solution breaks it down:
  \[
  100 - 25 = 75\% \quad (\text{after the 25% discount, Alexandra pays 75% of the original price}).
  \]
  \[
  250 \times 0.75 = 187.50
  \]
  
  So, the sale price of the boots is **$187.50**.

### Problem 15:
**Makenzie buys a WRX for $6,500 and sells it a year later for $7,150. What is her percentage profit?**

- The profit is:
  \[
  7,150 - 6,500 = 650 \quad (\text{the total profit in dollars}).
  \]
  - The percentage profit is:
  \[
  \frac{650}{6,500} \times 100 = 10\%
  \]

  So, her percentage profit is **10%**.

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Do you want details on any specific problem or further clarifications?

Here are 5 related questions to deepen your understanding:
1. How would Joshua's salary change if the pay rise was 5% instead of 3%?
2. What if Alexandra also had a coupon for an additional 10% off, how would the new price be calculated?
3. What is the total amount Joshua earns in a month after his raise?
4. If Makenzie had sold the WRX for $8,000, what would her new percentage profit be?
5. How would Alexandra's sale price change if the discount was 30% instead of 25%?

**Tip**: When calculating percentage increases or decreases, always convert the percentage into a decimal by dividing by 100, and then multiply it with the original value to get the final result.

13. Joshua earns $690 per week. He has just received a pay rise of 3%. How much does he now earn per week? 14. Alexandra purchases a pair of football boots at a 25% off sale. The boots are listed at $250. What is the sale price of the boots? 15. Makenzie buys an WRX for $6,500 and sells it a year later for $7,150. What is her percentage profit?

Learn how to solve problems involving percentage increases, discounts, and profit calculations. This includes calculating Joshua's new weekly salary after a 3% raise, Alexandra's savings on football boots after a 25% discount, and Makenzie's profit percentage on selling a WRX. Suitable for Grades 6-8.

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