Regina: 6.50h + 16 Phil: 3(2.5h + 5)

Joseph: 7.50h + 10

How many hours will Regina and Joseph have to work in order to make the same amount of money in one week?

inorder For Regina and joseph to each earn the same amount of money regina will have to work 6.50x10.7+16  and joseph 7.50x10.+10

Step-by-step explanation:

We know that the number of workers doubles every week.

This implies that the number of workers of the previous week is exactly half of the current one's.

So, it took 11 weeks for the factory to be at half capacity.