Which set of ordered pairs has point symmetry with respect to the orgin (0,0)
a. (9, 2), (-9,2)
b. (9,2), (-9,-2)
c. (9,2), (9,-2)
d. (9,2), (2,9)

Can somebody me out with this question

You are measuring the dimensions of the floor in your bedroom because you are planning to buy new carpet. which unit of measure is the most appropriate to use in this situation?

Solve each equation using the quadratic formula. find the exact solutions. 6n^2 + 4n - 11