Polly wants to solve the following equations using the method of elimination:

y = x – 2
y = 6x – 17

what number should y = x – 2 be multiplied by to eliminate x?
1
2
4
–6

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.