Answer: Union of two sets.
Explanation: "An element is in the union of two sets if it is in the first set, the second set, or both. The symbol we use for the union is ∪ . The word that you will often see that indicates a union is "or".
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Factor out -1
-1(x^2+x-6)
Factor the inner trinomial
-1(x+3)(x-2)
Final answer: B
Using the combination formula, it is found that she can select the shirts in 775,200 ways.
The order in which the shirt are chosen is not important, hence, the <em>combination formula</em> is used to solve this question.
Combination formula:
is the number of different combinations of x objects from a set of n elements, given by:
In this problem:
- 3 shirts from a set of 17.
- Then, 3 shirts from a set of 20.
- They are independent, hence, to find the total, we multiply both combinations.

She can select the shirts in 775,200 ways.
To learn more about the combination formula, you can check brainly.com/question/25821700
Answer:
SUPER SORRY IF THIS IS WRONG
I believe one egg would cost $2
Step-by-step explanation:
Three dozen eggs is 36 eggs, then 36 divided by 18 is 2. So one egg would be $2.
Again really sorry if I am wrong.
Answer: There are 12 months in one 1 year
Step-by-step explanation: