An average of m=786 per meal with a=85 for n=100 children and adolescents before the labeling, compared to an average m=772 of with s=91 for a similar sample of n=100 after the mandatory posting. use a two-tailed test with alpha=.05 to determine whether the mean number of calories after the posting is significantly different than before calorie content was posted.

Apolygon is shown on the graph: a polygon is shown on the coordinate plane. vertices are located at 3 comma 5, 1 comma 3, 1 comma 1, 2 comma 0, 4 comma 0, 5 comma 1, and 5 comma 3. what effect will a translation 3 units down and 2 units left have on the polygon? be sure to address how it could impact the angles, side lengths, and congruency between the original pre-image and the image. xd i need