Answer:
Amounts in the intervall 
Step-by-step explanation:
We will take the variables c and s, where
c = amount to spend that month
s = savings of the month.
Since each month we save at least 100, we know that

Moreover, we earn $250 per month and we spend $20 in a kayaking club, which tells us that

and so

By multiplying by -1, the first inequality also tells us that

Consequently by adding 230 to the inequality, we get that

Using <u>probability distribution concepts</u>, the correct option is:
-
C. the sum of the probabilities is not 1.00
- In a probability distribution, the <u>sum of all probabilities has to be equals to 1</u>.
In this problem, the probabilities are: 0.25, 0.45, 0, 0.35.
Their sum is:

Since the <u>sum is not 1</u>, the correct option is:
- C. the sum of the probabilities is not 1.00
For more on <u>probability distribution concepts</u>, you can check brainly.com/question/24802582
50 dollars per month. It says "after x months" -50x is the variable thats changes.
Answer: 12-n=25
-n=25-12
-n=13
Step-by-step explanation: