a- organic treats and baked chips.
b & c- 100 % 500 = 5 so 200 baked chips x 5 = 1,000. 1,000 baked chips has to be selled to earn $500. I divided $100 by the total amount he was going to get which is $500. I got 5. so 5 x 200 baked chips would be 1,000. thats how much they'll have to sell to get $500.
d- Yes, the club member is correct because half of 500 is 250. If you divide 500 by 250, you'll get 2. so to prove I'm right, 250x2=500
e- I think Ethen is correct because people would be just buying lots of snacks from different brands. that would be, for example: 23 for chips, 43 for donuts, and etc. if it was only one brand, they would sell a lot of snacks and get the bonus money.