Let's solve each of the problems step by step:

1. Real estate agent commission

• Given: The agent sold a house for ₱315,000. Her commission rate is 1.25% of the selling price.
• To find: The amount of her commission.

Solution: $\text{Commission} = \text{Selling Price} \times \text{Commission Rate}$ $\text{Commission} = 315,000 \times 0.0125 = 3,937.50$ The agent's commission is ₱3,937.50.

2. Roberta's earnings

• Given: Roberta makes ₱9 per hour plus a 12.5% commission on jewelry sales. She works an 8-hour shift and sells ₱380 worth of jewelry.
• To find: How much she earns in total.

Solution:

1. Roberta's hourly wage: $\text{Hourly Wage} = 9 \times 8 = 72$
2. Her commission from jewelry sales: $\text{Commission} = 380 \times 0.125 = 47.50$
3. Total earnings: $\text{Total Earnings} = 72 + 47.50 = 119.50$ Roberta earns ₱119.50 for that shift.

3. Kevin's commission

• Given: Kevin earns a base pay of ₱325 per week and earned a total of ₱1125 last week, including a commission.
• To find: How much of his earnings was commission.

Solution: $\text{Commission} = \text{Total Earnings} - \text{Base Pay}$ $\text{Commission} = 1125 - 325 = 800$ Kevin's commission is ₱800.

4. Danielle's commission

• Given: Danielle has a base salary of ₱450 per week plus a 9% commission on sales. She sold ₱895 worth of beauty supplies.
• To find: The commission she earns for that week.

Solution: $\text{Commission} = 895 \times 0.09 = 80.55$ Danielle's commission for that week is ₱80.55.

Do you have any further questions or need more details on these solutions?

Additional related questions:

1. How much would the real estate agent earn if her commission rate was 2% instead of 1.25%?
2. If Roberta sold ₱500 worth of jewelry, how much would she earn?
3. What is the percentage of Kevin's commission compared to his total earnings?
4. If Danielle's base salary was increased to ₱500, how would that affect her total earnings with the same sales?
5. If Kevin earned a total of ₱1500 one week, what would his commission be, assuming his base pay stays the same?

Tip:

To quickly calculate commission, always multiply the sales amount by the commission rate in decimal form (e.g., 9% becomes 0.09).