Running questions--, I need help, please & thank you(: Options

[StubbornFemme]

I haven't ran for a year and half, and I'm ready to start again because I am a bit overweight, lose the fat that rubs between my thighs (Go ahead, laugh.), and lose the bottom abdominal fat off. I know running does all that, at least that's what I heard. So my questions are:
1. Since I haven't ran for a long time, how long (time wise) should I run?
2.How many days should I run, I am still in high school; so how can I fit that into my schedule?
3.How long should I run, (the distance wise)?
4.How much pounds can I shed off in each week?
I do want to lose about 10-15/20lbs, but I'm not that much in a hurry. And of course, I am going to eat properly(:

Please reply and thank you for reading my post.