SOMEONE PLEASE HELP ASAP

How can the correlation in the scatter plot graph below best be described? positive correlation negative correlation both positive and negative no correlation

Cody started biking to the park traveling 15 mph, after some time the bike got a flat so cody walked the rest of the way, traveling 4 mph. if the total trip to the park took 6 hours and it was 46 miles away, how long did cody travel at each speed? solve using rate times time= distance

What is the perimeter of an equilateral triangle if each side is (x+3)?