Simon tosses a coin 20 times. the coin lands heads up 7 times. based on these results, how many times can simon expect the coin land heads up in the next 100 tosses? answer choices: 28 21 14 35

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 average distance in miles traveled in one hour if 660 miles can be covered in 1.5 hours

Solve the inequality 47.75 + x 50 to determine how much more weight can be added to li's suitcase without going over the 50-pound limit. what is the solution set?