James is farmer and is selling his sweet potato crop to local grocery stores. He uses the function C(x) = 0.65x + 85 to determine the total cost, C(x), to purchase x pounds of sweet potatoes. What is a reasonable domain for James'
function?

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).

Alex took his brother to a birthday party. the party was scheduled to last for 1 and 3/4 hours but they stayed for 4/5 of an hour more. how long did she stay at the party?

What multiplys to be 1 but adds up to be 4