Answer:
A. 4 1/2
Step-by-step explanation:
9 and 7 would be corresponding angles,
6 and 3 would be alternate interior angles,
5 and 4 should be same-side interior angles,
and the only exterior angle is 9.
I hope that helps.
Answer:

With the confidence level we can find the significance level:

And the value for
. Then we can use the normal standard distribution and we can find a quantile who accumulates 0.1 of the area on each tail and we got:

Step-by-step explanation:
For this problem we have the confidence level given

With the confidence level we can find the significance level:

And the value for
. Then we can use the normal standard distribution and we can find a quantile who accumulates 0.1 of the area on each tail and we got:

2 ok I am doing this cause I can not answer with out 20 words so that should be good now