From science to arts, IDNLearn.com has the answers to all your questions. Find the information you need quickly and easily with our reliable and thorough Q&A platform.
Answer:
137.9
Step-by-step explanation:
look at the decimal places, there is only numbers in the 10th place so there should be only 1 number after the decimal
so the answer to ? is 137.9
look in here if you dont understand what I said: https://www.dummies.com/education/science/chemistry/arithmetic-significant-figures/