It would be 5%. I know the answer is right I just don’t know how to explain it. Sry. But I hope this helps.
Answer:172.5
Step-by-step explanation:Xoxo
140 is a composite number. Factor pairs: 140 = 1 x 140, 2 x 70, 4 x 35, 5 x 28, 7 x 20, 10 x 14. Factors of 140: 1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140. Prime factorization: 140 = 2 x 2 x 5 x 7, which can also be written 140 = 2² x 5 x 7
Answer:
Refractive index of a medium depends upon the refractive index of the surroundings
