9880 different possibilities are there in Sally's new combination option second 9880 is correct.
<h3>What is permutation and combination?</h3>
A permutation is the number of different ways a set can be organized; order matters in permutations, but not in combinations.
We have:
Total unique numbers consists in a Sally locker = 3
From the digits 0 to 39
Total numbers = 40
Apply combination formula:
= C(40, 3)
= 40!/(3!37!)
= 9880
Thus, 9880 different possibilities are there in Sally's new combination option second 9880 is correct.
Learn more about permutation and combination here:
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Answer:
Its going to cost him 22.167
Step-by-step explanation:
Divide $9.50 by 3 = 3.167
multiply it by 7= 22.167
Answer:
it cant be solved
Step-by-step explanation:
please a brainliest please
