Polygon y is a scaled copy of polygon x using a scale factor of \dfrac13 3 1 start fraction, 1, divided by, 3, end fraction. polygon y's area is what fraction of polygon xxx's area?

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 is the solution to the equation? k/6.4=8.7 2.3 5.568 15.1 55.68

The weight of an object in the water is 7% of its weight out of the water. what is the weight of a 652g object in the water?