It's on the image the question I've been confused on this for about a hour, I need for Monday for a test I have.
please answer with the full steps and with explaining.

State if the two triangles are congruent. if they are, state how you know?

Now, martin can reasonably guess that the standard deviation for the entire population of people at the mall during the time of the survey is $1.50. what is the 95% confidence interval about the sample mean? interpret what this means in the context of the situation where 95 people were surveyed and the sample mean is $8. use the information in this resource to construct the confidence interval.

If julia has a value of x5.4 that is equivalent to x10.9 true or false. explain