In the related links box below, I posted the information.
it take a week
90 to feed a family of 3 for a week => 30 to feed one for a week => 30*5 to feed a family of 5 for a week ie 150. However, this assumes that it costs the same to feed adults and children in a family (unlikely), and that there are no economies of scale (also unlikely).
They should weigh between 3-5 pounds
a milk
yes
You should feed your betta 3-4 times a week.
3
No!
for a big dog like a Pitbull feed it two cups of kibble
At least 3 pounds a week.
31 skops a day
I seriously don't know. I think you might want to feed it something mice would like