Help! brainliest stars and hearts if correct! Please Area and perimeter! Please explain!

What is not true about kl and mn? what is mn? (show your work)

Aremote-controlled boat can travel at 4 feet per second in calm water. the boat traveled 48 feet with the current, and then it traveled 16 feet against the current in the same amount of time. how fast is the current?

Find the root(s) of f (x) = (x- 6)2(x + 2)2.