The decibel level of sound is 50 db greater on a busy street than in a quiet room where the intensity of sounds is 10^-10 watt/m^2.

the level of sound in the quiet room is (10,20, or 100) db, and the intensity of sound in the busy street is (10^-1, 10^-5, or

10^-10) wat/m^2.

use the formula b=10log(i/io) , where b is the sound level in decibels, i is the intensity of sound, and io is the smallest sound intensity that can be heard by the human ear (roughly equal to 1x10^-12 watts/m^2).

Find the values of y: 3y^3(y^2+ 2/3y)=0

An energy drink company claims that its product increases students' memory levels. to support its claims, the company issues advertisements claiming that 8 out of 10 people (chosen randomly from across the country) who tried their product reported improved memory. the missing component in this study is a .

Plz answer asap! i will reward brainliest and 12 points for these three questions!take notice: these three questions are completely different! 1) what is the percentage of sugar in the syrup made of 10 kg of water and 4 kg of suugar? 2) what was the original price if after 10% discount it became $450? 3) at first a price was decreased by 12%, then it was disounted again by an additional 5%. what is the percent of the total discount? , and remeber i will award brainliest and 12 points!