Can someone plz help me on this I’ll appreciate it thank you sooo much

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.

In the sixth grade 13 out of 20 students have a dog if there are 152 sixth grade students how many of them have a dog

Using only odd number for numerators write two different subtraction problems that have a difference of 3/4