Question in photo; pretty sure it’s an easy question i just don’t understand it

Ineed to know the ordered pairs for this equation i need the answer quick because it’s a timed test

The graph shows the decibel measure for sounds depending on how many times as intense they are as the threshold of sound. noise in a quiet room is 500 times as intense as the threshold of sound. what is the decibel measurement for the quiet room? 20 decibels28 decibels200 decibels280 decibels

Graph the following system of linear inequalities. identify at least two points in the solution: y < 5 - 2x | x + 5y > -7