Answer please with explanation thank you

Shape a has 1 order of rotational symmetry and 1 line of symmetry

Shape b has 2 orders of rotational symmetry and 0 line of symmetry

Rotational symmetry is how many times a shape can be rotated and look the same.

Lines of symmetry are how lines can be put through the shape to make it symmetrical or the same on both sides

for finding the midpoint of any given 2 pair of points simply add the respective x coordinates with other x coordinate and the y coordinate with other y coordinate and divide them by 2

in your question it will be :

(3+1)/2 for the x coordinate of mid point i.e 2

[8+(-4)]/2 for the y coordinate of midpoint i.e 2

so coordinates of mid point of points (3,8) and (1,-4) will be (2,2)

191 students play sports and ninety-seven 10th graders were surveyed.

step-by-step explanation: