Answer:

Step-by-step explanation:
We are given the following information in the question.
The open interval: (- 18,22).
Let p belong to the given interval then p represents all the values belonging to the given interval.
Open Interval: An open interval is a interval that does not include the end points.
Thus, we can write:

is the required inequality form required.
That is p can take values greater than -18 and smaller than 22.
The value as in adding them is 19
Answer:
30°
Step-by-step explanation:
180-75-75=30
P=$24038.60 has to be invested to have $45000 after 19 years