Job interview questions !! help!

Rose • Mommy to Isabella Rose 🌹
Okay let me give you guys a background story :
I just recently broke things off with my daughters father and I'm trying to get a full time job .
THANKFULLY I got 2 calls from two different phone companies (metro pcs and T-Mobile) And they're both tomorrow .. 
So I'm trying to work full time and go back to my moms house so I can save the money I make to finally get my own apartment and you know, start from scratch and make my daughter proud by doing it all on my own .
So question is:
How should I come up with the pay per hour question?
And should I even say "I have another interview after you so I would love to give you a call once the second interview is over so I know which one I'll choose from" ???
Idk help!