How much does my Dather-N-Law makes?

Rena D, my daughter-n-law works 2 jobs on 1job 40hrs+ and the other job 15-18hrs, my son pays over half the amount and she pays the less amount. I don't baby sit on Sun. that's my full day for the Lord and Wed. nights is Bible Study. Now, I have my own daughter that have 2 kids a 5yr. boy and a 18mo. girl as well. I charge her just the same, as well for gas 2 get her 2 and from work. My daughter knows that's how I've been with her 1st. baby. My daughter-n-law always amen when she heard me fuss at my daughter concerning my grandson, so now it's her turn to stop amening and pay the bill. My daughter-n-law does nothing 4 me, she looks 4 me 2 treat her better than my own daughter. I don't think so. don't get me wrong i do love my daughter-n-law but show me love as well. So, I could never b charging her 2 much, she do have my sons help, and my other daughter well she works just 2 pay baby sitting, gas, and bills with no help.I could go on concerning my these 2 girls. I do have 2 younger girls 16, and 9. I don't work and didn't ask 2 get hurt on the job, and will not b used by any of my children 2 keep there babies. Like I said I don't get a sick day, they bring the babies 2 me when I'm feeling bad and in pain. Cause they can't stay home. My concern is that daughter-n-law best know when she have it good with me. childcare will not pay for the whole cost f she put the baby n daycare, and what daycare will watch your baby from 6am-10pm for what I charge her. None! she still would have 2 pay around r more than what i get. Thank You,