Newly seeded lawn troubles
I just built a home and the builder drug his feet when it came to planting my lawn. The racking and seeding didn't happen until late May and we've had such a hot summer so far. Most of the seeds (that were not eaten by birds) did germinate, but I have noticed in large areas it is very thin and somewhat yellow. It has been about 7 weeks since my lawn has been planted, I have been watering it as much as possible and am wondering about a few things moving forward.
1) Can I use Scotts Turf Builder Lawn food to help thicken what has germinated?
2) I haven't moved yet, some areas it is very high (6+ inches) other areas it is 2.5-3". Is it still OK to mow?
3) If I put down Scotts, can I mow a day or two after?
I appreciate any help. Thanks.