Answer: The last one
Step-by-step explanation:
You have to multiply and then you have your answer.
Answer:
9.1 × 10^2 mm (a.k.a the 3rd option)
Since 100 stamps = 0.91 mm, 100,000 stamps = x
=0.91 × 100,000= 19000 mm.
=(Cross multiply then divide) 91000/100=910mm
910 in scientific notation is 9.1 × 10^2 mm.
