A dancer is auditioning for dance competition. If she required to dance any of the three of the 7 dance music, in hoe many ways can she make her choice? The number of dance choice can be solve by using the formula:
A. C(7,3)
B. C(3,7)
C. C(7+3)
D. C(3-7)
A. C(7,3)
B. C(3,7)
C. C(7+3)
D. C(3-7)
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Answer:
B
Step-by-step explanation: