Question b please my brain is fried how much lighter than the heaviest child is the lightest child

Which set of reflections would carry trapezoid abcd onto itself? a) x-axis, y=x, y-axis, x-axis b) x-axis, y-axis, x-axis c) y=x, x-axis, x-axis d) y-axis, x-axis, y-axis, x-axis

Create a data set with 8 points in it that has a mean of approximately 10 and a standard deviation of approximately 1.

Which type of graph would allow us to quickly see how many students between 100 and 200 students were treated?