Three out of seven students in the cafeteria line are chosen to answer survey questions. How many different combinations of three students are possible? 7 35 70 210

1 2 3 4 5 6 7

123  
124
125
126
127
134
135
136
137
145,
146,
147
156
157
167
234
235
236
237
245
246
247
256
257
267
345
346
347
356
357
367
456
457
467
567
The answer is 35