3. Just for fun: The numbers on the clock below does not seem to be normal. Use your calculation skills to
see the mathematical reasoning behind the values used. Start at the values used to indicate the
one. You must show 12 calculations.​

What is the result of adding the system of equations? 2x+y=4 3x-y=6

2. explain in words how you plot the point (4, −2) in a rectangular coordinate system.

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