Answer:
34g
(second option listed)
Step-by-step explanation:
half life is the number of days it takes to decrease by half,
after 8 days you are left with half of the original portion
in a period of 32 days, we experience 4 repeats of 8 days
(it gets cut in half four times):
544 / 2 = 272 {day 8}
272 / 2 = 136 {day 16}
136 / 2 = 68 {day 24}
68 / 2 = 34 {day 32}
so, after 32 days, 34g of ooblek are left un-decayed
hope this helps!! have a lovely day :)