A sample is taken from all college freshmen. Right-handed students are excluded. What is this an example of? A. Nonresponse bias
B. Nonselection bias
C. Response bias
D. Selection bias

Which three lengths could be the lengths of the sides of a triangle? 21 cm, 7 cm, 7 cm 9 cm, 15 cm, 22 cm 13 cm, 5 cm, 18 cm 8 cm, 23 cm, 11 cm

Plz determine whether the polynomial is a difference of squares and if it is, factor it. y2 – 196 is a difference of squares: (y + 14)2 is a difference of squares: (y – 14)2 is a difference of squares: (y + 14)(y – 14) is not a difference of squares

Solve this system of equations. 12x − 18y = 27 4x − 6y = 10