Answer:
You didn't add a specific time frame so I can you a correct answer.
Explanation:
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Answer:
The 24 because it is suposed to cost 6.76 and it cost 5.90.
Answer:
So the number of total combinations is 35.
Step-by-step explanation:
We know that Ellen must take 4 courses this semester. She has a list of 3 math courses and 4 science courses.
Therefore, she have total 7 courses.
So, we calculate the number of combinations to choose 4 out of 7 courses.
We get:

So the number of total combinations is 35.