Guess the number. The number has two digits. The sum of the digits is eight. If the digits are reversed, the results is 18 less than the original number. What is the original number?

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).

The table shows the balance of a money market account over time. write a function that represents the balance y (in dollars) after t years.

Find the solution set of this inequality. enter your answer in interval notation using grouping symbols. |8x-4| ≤ 12