Tommy polled 22 parents living throughout each county in his state. Each county is the same size. Is this sample of the parents of the state likely to be biased? no yes​

Ithink it’s b, hope this .

Idon't take stuff like this new to me

You move the constant to the right side and change its sign to be 9z= -6 -8. that’s the first step.the second step would be calculate the difference of -8-6 to get -14. you equation should now be 9z=-14the last step is to divide both sides by 9 to get z=-14/9hope this