Find the value of the y-intercept of the line whose equation is 5x - 3y = -12.

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).

Haley buys 9 pounds of apples for $3. how many pounds of apples can she buy for $1?

One positive number is 9 more than twice another. if their product is 95, find the numbers