Answer:
its the last one
Step-by-step explanation:
the sign flips when you divide by a negative
123 centimeters into dekameters
0.123
10 centimeters = 1 decimeter
100 decimeters = 1 dekameter
Therefore, 100 centimeters = 10 decimeters = 0.1
23 centimeters = 2.3 decimeters = 0.023
0.1 + 0.023 = 0.123 dam
For this case we have the following functions:

By definition of composition of functions we have to:
So:

By definition of division of powers of the same base we have to place the same base and subtract the exponents:

ANswer:

The mean= 5.5
The median= 6
The range= 10
The IQR= 5
I really hope this helps:)
Answer:
19 is the answer i think.