Marty is at the clothing store and sees that the shirt he wants is 15% off. He knows that he can
use the expression c - 0.15c, where c is the cost
of the shirt, to find the discounted cost of the shirt
before tax. Determine which expressions are
equivalent to c -0.15c. Select Equivalent or Not
Equivalent for each expression.

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).

Find the zeros of the function. write the smaller solution first, and the larger solution second f(x)= (x+6)^2-49

Answer asap ill give ! ’ a sample of radioactive material decays over time. the number of grams, y , of the material remaining x days after the sample is discovered is given by the equation y = 10(0.5)^x. what does the number 10 represents in the equation? a. the half-life of the radioactive material, in days b. the amount of the sample, in grams, that decays each day c. the time, in days, it will take for the samples to decay completely d. the size of the sample, in grams, at the time the material was discovered