4a-8=28
add 8 to both sides to start to isolate the variable (a)
-8+8 cancels each other out
28+8=36
4a=36
to completely isolate the variable divide both sides by 4
4a÷4=a
36÷4=9
a=9
Answer:
A. biased because if people are leaving a fast food restaurant, they are more likely to eat fast food restaurants than if you were to survey them in a more random setting.
B. Representative because her eggs came from multiple sample spaces.
C. biased because the tallest corn stalk is expected to have more ears.
Y= 2x-3/4
M is the slope
B is the y-intercept
