It costs $8.50 per person and $25 per hour to rent a meeting room. let p represent the number of people and h represent the number of hours. the last rental paid for 20 people for 2 hours.

which shows the expression that represents the total cost and the total cost of the last rental?

a
8.5p + 25h; $220

b
8.5h + 25p; $517

c
170h + 50p; $1,340

d
170p + 50h; $3,400

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.