Answer the questions below for each image. is this figure a polygon? Answer the following only if the figure is a polygon. If it is not a polygon, select "not a polygon" Is this polygon concave or convex? is this polygon regular equilateral equiangular or none of these? What is the name of this polygon?

The decibel level of sound is 50 db greater on a busy street than in a quiet room where the intensity of sound is watt/m2. the level of sound in the quiet room is db, and the intensity of sound in the busy street is watt/m2. use the formula , where is the sound level in decibels, i is the intensity of sound, and is the smallest sound intensity that can be heard by the human ear (roughly equal to watts/m2).

What expression is equivalent to 1/2(2+3x-6)

What term makes it inconsistent y=2x - 4