Which set of transformations has been performed on triangle ABC to form triangle A′B′C′? Dilation by a scale factor of 4 followed by reflection over the x-axis Dilation by a scale factor of 2 followed by reflection over the x-axis Dilation by a scale factor of 4 followed by reflection over the y-axis Dilation by a scale factor of 2 followed by reflection over the y-axis

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 fewest number of full weeks briyana would have to work to have enough money? 8 weeks9 weeks 10 weeks11 weeks

Jose predicted that he would sell 48 umbrellas. he actually sold 72 umbrellas. what are the values of a and b in the table below? round to the nearest tenth if necessary