15 points asap here is the top part of the question is
what is sandra’s expected value of points awarded for a race?

The two-way frequency table below shows data on playing a sport and playing a musical instrument for students in a class.

Find the missing factor. 7s2 + 25s + 12 = (s + 3)( ).

Quadrilateral wxyz is on a coordinate plane. segment yz is on the line x+y=7 and segment xw is on the line x+y=3. which statement proves how segments yz and xw are related