exam Maths Puzzle Numerical Ability

How many ways can 4 people be chosen from a group of 9? Tell wheater the situation is permutation or combination

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exam Other Question

Solve the equation. Be sure to check your solutions.
√x + 4 =3 A hockey team played 81 games in a season. They won 1 fewer game than three times the number of ties and lost 8 fewer games than they won. How many games did they win? Lose? Tie?