it would be 692,000 even though it may look odd since the place holder for 100 is a 0
-3/4 because it's negative and also you can work it out by using rise/run
Using a calculator I put 1,284/26=49.384615385. Rounded to tenth: 49.4 :)
The number of handshakes is the number of ways 6 objects can be selected 2 at a time.
.. C(6,2) = 6·5/(2·1) = 15
The appropriate choice is
... C) 15
_____
Consider that each person can shake hands with 5 others. That's a total of 6*5 = 30 handshakes, but it counts both A shaking with B and B shaking with A. If each pair of persons only shakes hands once, the number of handshakes is 30/2 = 15.
