Answer:
its 4
Step-by-step explanation:
Because since the next number is 8 and its above 5 then a number above 9 is something you cannot put in so you just round the whole number since the rest of the numbers are also 9.
7500, 2 significant figures would be the first two, and 4 would round up to a five with the 6 after it
Answer: 2 hours after 10:30 is 12:30?
Step 3. It lost track of one power of a on the left side.