Q: Onum Lake has 25 more trout than Boast Pool.  There are 75 fish in Boast Pool. Riddle Pond has half as many fish as Onum Lake. What is the average number of fish in all three bodies of water?
A: Onum lake has 25 trout + 75 = 100 fish. Riddle Pond has 1 / 2 * 100 fish in Onum lake = 50 fish. Combined the three bodies of water have 100 fish + 50 fish + 75 fish = 225 fish. The average number of fish in the bodies of water is 225 fish / 3 = 75 fish. The answer is 75.

Q: Chastity bought 4 lollipops which cost $1.50 each, and she also bought 2 packs of gummies which cost $2 each. If she has $15, how much was she left with after spending on the candies?
A: She spent 4 x $1.50 = $6 for the lollipops. She also spent 2 x $2 = $4 for the gummies. Therefore, Chastity was left with $15 - $10 = $5. The answer is 5.

Q: James splits 4 packs of stickers that have 30 stickers each. Each sticker cost $.10. If his friend pays for half how much did James pay?
A:

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
user
He buys 4 * 30 = 120 stickers. That means it cost 120 * .1 = $12. So he pays 12 * .5 = $6. The answer is 6.