Just a friendly riddle for 40 points gys! What was once dark and shifty weary of golden flame is now worn yet shiny and so lame (extra points if you get the reference)

Which is the equation of a line perpendicular to the line with the equation 3x+4y=8

If there is 20 dogs in the shelter and 5 dogs get homes, and then 43 more dogs come. how many dogs are there in the shelter?

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?