Can you help me with this math problem?

How many days does he intend to keep eating? It's a 140per unless I'm reading it incorrectly.

8x + 3y = 140 with x and y equal to integers. Start with one known point. I suggest x=1 and y=44. Every time x goes up by 3, y goes down by 8 to keep the balance. The next point would be (4,36), then (7,28), etc. You can take it from there.

It depends. Does it have to work out evenly - so that there are no mega-fly legs left over or wasted? If that's not a requirement - you could catch how ever many you wanted - as long as you had 44 males say and 1 female - which would give you 140 legs or you could have 36 males and 4 females and that would give you 140 legs, 28 males and seven females, 2o males/10 females, 12 males/13 females, 4 males/16 females ... etc. think about it in terms of multiples of 3 and 8 .
Oh, see I'm a teacher so I gave him the answers hoping that would help him figure out how to do the problem....

Thanks for the help people!

Gosh! you guys are smart!

There are six answers, if you want it to be a positive integer. Female: 16, Male: 4. Female: 13, Male: 12. Female: 10, Male: 20. Female: 7, Male: 28. Female: 4, Male: 36. At last Female: 1, Male: 44