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Let's go through the questions from the image one by one and solve them:

### 9. Janice is a real estate agent. She receives a 5% commission when she sells a condominium unit. How much commission will Janice receive if she sells a condominium unit worth ₱4,000,000.00?

**Solution:**
The commission is 5% of ₱4,000,000.00.

\[
\text{Commission} = \frac{5}{100} \times 4,000,000 = 0.05 \times 4,000,000 = 200,000
\]

So, **Janice's commission is ₱200,000.**

---

### 10. The price of a tuxedo suit is ₱6,200.00. What is the total purchase price of the tuxedo suit if a sales tax of 6% is imposed in selling it?

**Solution:**
The sales tax is 6% of ₱6,200.00.

\[
\text{Sales Tax} = \frac{6}{100} \times 6,200 = 0.06 \times 6,200 = 372
\]

The total price = price of the tuxedo + sales tax = 6,200 + 372 = **₱6,572.**

---

### 11. A computer set sells for ₱32,000.00. What is the tax rate for selling the computer set if the sales tax amounts to ₱2,720.00?

**Solution:**
The tax rate can be found using the formula:

\[
\text{Tax Rate} = \frac{\text{Sales Tax}}{\text{Selling Price}} \times 100 = \frac{2,720}{32,000} \times 100 = 8.5\%
\]

So, **the tax rate is 8.5%.**

---

### 12. If an amount of ₱30,000.00 is borrowed at a simple interest rate of 3% per year, how much interest does it yield in 4 years?

**Solution:**
The formula for simple interest is:

\[
I = P \times r \times t
\]

Where:
- \( P = 30,000 \) is the principal,
- \( r = \frac{3}{100} = 0.03 \) is the rate of interest,
- \( t = 4 \) years.

\[
I = 30,000 \times 0.03 \times 4 = 3,600
\]

So, **the interest is ₱3,600.**

---

### 13. What is the total amount you have to pay in 2 years if you borrow ₱10,000.00 at a simple interest rate of 8% per year?

**Solution:**
First, calculate the simple interest using the same formula:

\[
I = P \times r \times t
\]

Where:
- \( P = 10,000 \),
- \( r = \frac{8}{100} = 0.08 \),
- \( t = 2 \) years.

\[
I = 10,000 \times 0.08 \times 2 = 1,600
\]

Now, the total amount to be paid is the principal + interest:

\[
\text{Total Amount} = 10,000 + 1,600 = 11,600
\]

So, **the total amount to be paid is ₱11,600.**

---

Would you like further clarification or details on any of these problems?

### Related Questions:
1. What if Janice sold two condominium units? What would her total commission be?
2. How much would the tuxedo cost if the sales tax was 10% instead of 6%?
3. If the sales tax for the computer was only ₱1,600, what would the new tax rate be?
4. What is the simple interest for a loan of ₱40,000 at a rate of 5% over 3 years?
5. If the interest rate for the ₱10,000 loan increased to 12%, how much would you need to pay after 2 years?

**Tip:** When working with percentages, always remember to convert them to decimals by dividing by 100 before performing any multiplication.

Janice is a real estate agent. She receives 5% commission when she sells a condominium unit. How much commission will Janice receive if she sells a condominium unit worth ₱4,000,000.00? The price of a tuxedo suit is ₱6,200.00. What is the total purchase price of the tuxedo suit if a sales tax of 6% is imposed in selling it?

Learn how to solve problems involving real estate commissions, sales tax on purchases, and simple interest on loans. Example: Janice earns a 5% commission on a ₱4,000,000 condominium sale, and a tuxedo suit priced at ₱6,200 has a 6% sales tax. Perfect for students in Grades 7-9.

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