George saves 18% of his total gross weekly earnings from his 2 part-time jobs. He earns $6.25 per hour from one part-time job and $7.50 per hour from the other part-time job. George works a total of 40 hours between the two jobs each week. What additional information is needed to determine the amount of his earnings he saves each week?

How many hours he spends on each job is needed.

To determine the amount of George's earnings he saves each week, we need to know the total number of hours he works in each part-time job.

Let's suppose George works "x" hours in the first part-time job and "y" hours in the second part-time job.

We are given that George's total hours worked between the two jobs each week is 40 hours, so we can write the equation:

x + y = 40

We also know that George earns $6.25 per hour from the first part-time job and $7.50 per hour from the second part-time job.

To calculate George's total earnings from each job, we can use the formulas:

Earnings from the first job = $6.25 * x
Earnings from the second job = $7.50 * y

However, the question asks for the additional information needed to determine the amount George saves each week. Based on the given information, we still need to know the total earnings from both part-time jobs.

If we have this additional information, we can then calculate the amount George saves each week by finding the total earnings from both jobs and applying the 18% saving rate:

Total earnings from both jobs = Earnings from the first job + Earnings from the second job
Amount saved each week = 18% of the total earnings from both jobs

So, to find the amount of George's earnings he saves each week, we would need to know the total earnings from both part-time jobs.

To determine the amount of George's earnings he saves each week, we need the total gross weekly earnings from his two part-time jobs. The hourly rates and total hours worked are provided, but we need the information on how much he earns in total.