both alarms go off at 6:45 and tom's alarm goes off every 9 minutes and Amy's goes off every 12 minutes when do they next go off together

your question is incomplete, write all the numbers in the sequence that it tells you.  

step-by-step explanation:

yes.. it's proven to be 36.

answer: 5 17/33 % (to the tenth)

step-by-step explanation:

he guessed: 34.5 pounds

actual weight is 32.7

there for he is off:

34.5 -32.7 = 1.8

32.7 is the 100%

1.8 represents %? of 32.7

therefore:

32.7   - 100%

1.8     -     x%

x= 1.8*100%/32.7% = 18*100%/327%

x=1800%/327%   = (5 165/327)%

to the tenth:

5 17/33 %