12b + 9 = 12b + 11 what’s the answer

What number is 7 units left of -15?

Asap (i need to finish this quick) graph complete the sequence of transformations that produces △x'y'z' from △xyz. a clockwise rotation ° about the origin followed by a translation units to the right and 6 units down produces δx'y'z' from δxyz.

Which of the following statements would be sufficient to prove that parallelograms pqrs is a rectangle ?