Tatiana practiced a total of 12 hours last week to prepare for her gymnastics meet. The line plot shows how long she practiced on the first six days of the week. If Tatiana practiced every day last week, how long did she practice on the last day?

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.

What is the value of x in the following equation? -3x-2=2x+8

To determine the number of deer in a forest a forest ranger tags 280 and releases them back