Answer:
z=-60
Step-by-step explanation:
1/6z=-10
z=-10×6
z=-60
No because he only surveyed the members of the chess club
-16 + 4x = 20
+16 +16
———————
4x= 36
————
4
x= 9
Answer:
The slope is 
Step-by-step explanation:
Let
and 
The slope is given by;

We plug in the values to get;

Simplify;

