The appropriate SI unit for measuring the height of a person is meters.
Answer:

Step-by-step explanation:
First Rectangle:

Second Rectangle:


Answer:
A. t(x) = 450 - 0.06x
Step-by-step explanation:
The layer which is originally 450 m thick is decreasing by 0.06 m.
450 - 0.06
... per day. x represents days.
0.06x
So,
450 - 0.06x
C is the correct answer
Hope this helps :D