30 men take 20 days to complete a job working for 9 hours a day. how many hours a day should 40 men complete the job

-7/8

step-by-step explanation:

instead of subtracting you add the -6/8 and -1/8

for future students the answer is b

hope i

-lavira: )

step-by-step explanation:

6

dont't really have enough info here but its likely

sss for the three sides being congruent ( its stands for side side side)

or

sas   for side angle side.   so a side is congruent and and angle and a side