In the first question, we found the Nearest Neighbor Circuit starting at vertex A, but to do Repetitive Nearest Neighbor, we need to find the Nearest Neighbor Circuit starting at each vertex.

step-by-step explanation:

-3.5 degrees per hour

step-by-step explanation:

find the unit rate:

-12   1/4 degrees           12.25 degrees

= - = -3.5 degrees per hour

      3   1/2 hours               3.5 hours

any of them that add up to 180 degrees.