To calculate how much you earn on Saturday with an additional 25% pay for a 7.5-hour shift, follow these steps:

1. Base hourly rate = $24.08

2. Saturday additional pay = 25% of the base hourly rate.

   To find the additional pay: $\text{Additional pay} = 0.25 \times 24.08 = 6.02$

3. Saturday hourly rate = Base rate + Additional pay: $\text{Saturday hourly rate} = 24.08 + 6.02 = 30.10$

4. Total earnings on Saturday for 7.5 hours: $\text{Total earnings} = 30.10 \times 7.5 = 225.75$

So, you earn $225.75 for a 7.5-hour shift on Saturday.

Would you like any further details or clarifications?

Here are 5 related questions to expand your understanding:

1. How would your total earnings change if you worked 8 hours instead of 7.5?
2. What would your total earnings be if the Saturday rate increase were 30% instead of 25%?
3. If you worked 6.5 hours on Saturday, how much would you earn?
4. How much extra do you earn on Saturday compared to a normal weekday?
5. If you worked 7.5 hours on both Friday and Saturday, how much would you earn combined?

Tip: When calculating percentage increases, always multiply the base value by the percentage (in decimal form) to find the extra amount.