Answer:
what do you need help with? and thank you for the points! Once you tell me what you need help with I will write the answer in the comments!
Step-by-step explanation:
Answer:
lower half
Step-by-step explanation:
The first quartile in this is 230
We'll use the notation
for the principal value and
for all the values:

Part I


Part II. In our range we can write


Part III.

Part IV.


The answer should be 2(2b+3)