Name numbers that’s round to 140,000 or 240,000 when rounded to the nearest ten thousand

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

Which equation represents a line that passes through the point (9, -4) and has a slope of 3/5?

The function below is written in vertex form or intercept form. rewrite them in standard form and show your work. y = 5(x+3)^2-4