U can do tallies.. Its like little lines..That add up to 30.
Answer:

Step-by-step explanation:
The mid point can be found with the formula

The given coordinates are
and
.
Replacing coordinates in the formula, we have

Therefore, the mid point of the segment PQ is 
4136/8= 517
The others
7116/8=889.5
4309/8=538.625
9406/8=1175.75
I think it’s -4 but i’m not sure
Answer:
there are different
Step-by-step explanation: