Emily wants to have her résumé printed.The printing company charges $24.50 for the first 100 résumés,and then a flat rate for each additional 100 résumés.Emily pays $48.50 for 300 résumés.How much is the flat rate after the first 100 résumés are purchased?

Normal distributions differ from frequency distributions in that ______.

A) normal distributions are based on data you have actually collected
B) frequency distributions are based on an infinite number of scores
C) normal distributions are based on mathematical formulas
D) frequency distributions are theoretical distributions

There are 12,650 ways a teacher can group 4 students in a class that has 25 students.

Cliff just received a raise to $18.45 per hour from $18.00. What is the percent increase in his hourly rate?