Let this number be x. The next number is (x+1). And their sum is 57. Then, we have to solve this equation x+x+1=57

Emily's number was 28
Answer:
The 99% confidence interval for the mean number of hours of part-time work per week for all college students is between 25.8 and 30.2.
Step-by-step explanation:
A confidence interval has the following format.

In which
is the mean of the sample and M is the margin of error.
In this problem, we have that:



The 99% confidence interval for the mean number of hours of part-time work per week for all college students is between 25.8 and 30.2.
It would be 8xy
Because you would multiply the 2 numbers together