Which surgical approach is used for repair of coarctation of the aorta and patent ductus arteriosus?

Consider the following equation: y = 2x Which of the following is the proportionality constant?

A) 2 B) 4 C) x D) y

Obstructions to exterior access found during inspection should be:

A. ignored until the next inspection. B. torn down or removed immediately. C. reported to the local police department. D. noted to ensure that they do not impede access.