20. Kira's monthly gym bill is
$50 plus $15 per class. She
signs up
for at least one
class each month. Write a
linear function to represent
Kira's gym cost. What do the
domain and range of the
function represent?
GYM BILL
Monthly fee: $50
Fee per class: $15
Classes taken:
2
4
Total due:
$80
Suppose you are an avid reader and are looking to save money on the cost of books instead of paying about $20 for each book, you decide to look into purchasing a kindle for $120 you can purchase e-books for about $5 each 1. find the slope-intercept equation for the cost of the hard copy of books using x to represent the number of books 2. find the slope-intercept equation for the cost of the kindle with cost of e-books using x to represent the number of books
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.