Answer:
The last choice.
Step-by-step explanation:

The value of k must be restricted from being one that makes the original denominator zero. Hence k ≠ -1 or 5.
Answer:
14/5
Step-by-step explanation:
I'd suggest rewriting both mixed numbers as improper fractions. Then we'd have:
14/3 and 5/3
Dividing 14/3 by 5/3 is equivalent to dividing 14 by 5, since the denominators are the same (3).
Quotient is 14/5.
Answer:
6
Step-by-step explanation:
Let the 4 people be A, B, C and D. If each of them shakes hands with another person exactly one time then that means
A shakes with B, C and D. So 3 handshakes
B already shakes with A. So B shakes with C and D. 2 handshakes
C already shakes with A and B. So C shakes with D only. 1 handshake.
D already shake hand with all above.
Total handshakes: 3 + 2 + 1 = 6
Answer: 68
Step-by-step explanation: Because I am smart