Answer:
x = 9/k
Step-by-step explanation:
Given:
The equation is

To find:
The value of x.
Solution:
We have,

Isolating the variable, we get




Therefore, the value of x is 44.2.
45 handshakes are possible
1500 total surveys sent
Returned: 245 + 173 + 185 + 92 = 695
1500-695 = 805