Answer:
40 min
Step-by-step explanation:
Sea level is 0 meters. Time when Amir reaches sea level is intersection line and x-axis. It is 40 minutes.
8 ≥ y + 3 is the answer to problem 7. Also, in problem 5, I couldn't help but notice that the sign should face the other way but still include the equal to sign underneath it, because it should be 4 at MOST, meaning that 4 must be greater than or equal to y + 7.
