How can you be sure the unbiased example is a reflection of the entire population? Is it possible for an unbiased sample to have the same results as one of the biased samples ? Explain.

no

step-by-step explanation:

2-7=-5

7-2=5

when you combing like terms for ech expression, 5 and -5. these numbers are not equal to each other.

i believe the answer is the polygon, heptagon.

if you was gonna solve for a, a is a   < -12

6e14 is the answer.