Ask your own question, for FREE!
Mathematics 17 Online
OpenStudy (anonymous):

temperature started at 17 dropped 12, rose 9 and dropped 21

OpenStudy (anonymous):

t = 17 -12 + 9 - 21 = -7

Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!
Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!