Answer:
It is not enough evidence to reject null hypothesis. It is not enough evidence to say that mean score is not equal to 35.
Step-by-step explanation:

1. Null and alternative hypothesis

2. Significance level

Freedom degrees is given by:

For a sgnificance level of 0,01 and 22 freedom degrees, t-student distribution value is:

3. Test statistic



In this case, we have an one left tailed analysis, it means that null hypothesis is rejected if 

Conclusion:
It is not enough evidence to reject null hypothesis. It is not enough evidence to say that mean score is not equal to 35.
Answer : Company A
This is because the unit price per ounce for company a is 0.3125 while the unit price per ounce for company b is 0.35.
Use the sine law. It will give you all angles
Answer:
y=-1/3x-11/3
(Not sure what point slope form is, but this is the equation for the points)