Penny is training for a race. First she ran 1/10 of a mile 4 times. Next she ran 1/5 of a mile 3 times. Then she ran 3/10 of a mile 2 times. How far did Penny run during her training?​

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.

Can some one explain this i got sent this. is this a threat i’m scared

Rose bought a new hat when she was on vacation. the following formula describes the percent sales tax rose paid b=t-c/c