Kelly is three years younger than her sister. the sum of their ages is 34 years. how old is kelly and how old is her sister?

Write a polynomial for a third-degree polynomial with leading coefficient -4

1. there are 25 students who started computer programming in elementary school and 25 students who started computer programming in middle school. the first group had a mean final project grade of 95% and the second group had a mean final project grade of 92%. the line plot shows the differences after 10 rerandomizations. determine whether the difference in the means of the two groups is significant based on the line plot. explain your answer.

Henry is an avid reader, he devours 90 pages in half an hour how many pages has henry read per minute?