Answer:
The answer is 4!
Step-by-step explanation:
2 + 2 can be rewritten as 1+1+1+1
both equal 4
The answer is 19mm. Hope this helped.
Using the combination formula, it is found that there are 220 ways to decide which countries to skip.
The order in which the countries are skipped is not important, hence the <em>combination formula </em>is used to solve this question.
<h3>What is the combination formula?</h3>
is the number of different combinations of x objects from a set of n elements, given by:

In this problem, 3 countries are skipped from a set of 12, hence the number of ways is given by:

More can be learned about the combination formula at brainly.com/question/25821700
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Answer:
Jill's best friend jumped 8/21 feet further than Jill.
Step-by-step explanation:
we have that
Jill jumped 6 1/3 feet
Jill best friend jumped 6 5/7 feet
To find out how much farther did Jill's best friend jumped, subtract the length that Jill jumped from the length that Jill best friend jumped

but first convert mixed number to improper fraction


substitute the values

therefore
Jill's best friend jumped 8/21 feet further than Jill.