How many different ways can a coach select the captain and co-captain of a team from a group of 20 people?
a: 40
b: 160
c: 380
d: 420
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ariel wants to choose 5 players for her basketball team. there are 7 players to choose from. how many different teams can ariel make?
a: 21
b: 35
c: 42
d: 56
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((question in picture))
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Step-by-step explanation:

1. Number of peoples available to choose from = 20

After selecting the captain number of people left among which co captain can be selected = 20 - 1 = 19

Hence, Number of ways a coach select the captain and co-captain of a team from a group of 20 people = 20 × 19 = 380

Therefore, The correct option is C. 380

2. Total number of players = 7

Number of players to be selected = 5

Therefore, The correct option is A. 21

3. Total number of outcomes = 20

The digits 1, 2, 3, 4, 5, 6 represent the student who make a C

Number of students who make a C at least 3 times = 13

Therefore, The correct option is D