Answer:
What? I don't think I can help you. I'm very sorry though.
Step-by-step explanation:
Answer:
Simplified, this would be 2
Step-by-step explanation:
In order to find this, combine like terms. Start with the y terms.
-2y + 2y = 0
Then use the constants
10 - 8 = 2
And then combine the terms
0 + 2 = 2
Using the z-distribution, as we are working with a proportion, it is found that the margin of error for the 90% confidence interval is of 0.0524 = 5.24%.
<h3>What is a confidence interval of proportions?</h3>
A confidence interval of proportions is given by:

In which:
is the sample proportion.
The margin of error is given by:

In this problem, the critical value is given as z = 1.645, and since 26 out of 80 students said they would be willing to pay extra:

Then, the <em>margin of error</em> is of:

More can be learned about the z-distribution at brainly.com/question/25890103
I don't have a value... jk jk :)
Answer: 40°
Explanation... since U is on a straight line and since GS is 140
180 - 140 = 40
<em>Hope it helps...</em>