9) In John Adams Middle School's 6th grade class, the ratio of total students to
students with pets is 3 to 1. If there are 90 total students, how many students have
pets?

i would need to see the dot plot : )

faster, im not sure why but i know it is faster

step-by-step explanation:

two pairs of adjacent sides are of equal length. this implies that one diagonal divides the kite into congruent triangles, and so the angles between the two pairs of equal sides are equal in measure. it also implies that the diagonals are perpendicular.

step-by-step explanation:

points a and b are equidistant from the desired line, so the line you find by using them will go through point r.

using points other than a and b will give the desired line only if they are equidistant from r. if they are randomly located, the perpendicular line you create will not necessarily go through point r, hence will not be a solution to the problem.