What is the solution to the system? x + y = -4 -2x + y = 2

Ineed with number 17 i don’t get it at alll

Given the graphed function below which of the following orders pairs are found on the inverse function

You can ride your bike around your block 6 times and the whole neighborhood 5 times in 16 minutes. you can ride your bike around your block 3 times and the whole neighborhood 10 times in 23 minutes. how long does it take you to ride around the neighborhood?