Answer:
y = 7
Step-by-step explanation:

Add -4y and 6y

Move all terms not containing y to the right side of the equation.

Divide both sides by 2

Answer:
(a) One count is only 7, and the guidelines for using the large-sample method call for all counts to be at least 10.
Step-by-step explanation:
Attached is the solution to b and c
P(x, y) Q(x,y)
P(-2, -1) start at 0. Go to the left two squares, then go down 1 square. mark a point there
Q(2, 4) start at 0. Go to the right two squares, go up 4 squares. mark a point there.
connect two points
make a right triangle
Then use the pythereom


Step-by-step explanation:
please provide formula