Last week, Amy drove n miles. This week, she drove 139 miles. Using n, write an expression for the total number of miles she drove in the two weeks

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).

For the equations below which statement is true ? -2x=14 6x=-42

What is the order of these fractions from least to greatest 2/3 7/10 5/8 65/100