Answer: 4
Step-by-step explanation:
7n + 6 = 34
6 - 6 = 0
34 - 6 = 28
7n = 28
7/7
28/7 = 4
Answer:
1.) 6C4= 15
2.) (1C1)*(6C3)= 20
3.) (2C2)*(6C2)= 15