Answer:
2(x + y)
Step-by-step explanation:
You can pull out a 2 from the expression.
So divide 2x by 2 and 2y by 2.
2x/2 = x
2y/2 = y
2(x + y)
Answer:
A
Step-by-step explanation:
B1 represents the slope of the population regression line so A is the answer
For this case we must solve the following proportion:

Multiplying by 5 on both sides of the equation we have:

Subtracting 2 from both sides of the equation:

ANswer:
