PLZ HELP
the expressions a[8x+7] and 4x+3.5 are equivalent. what is the value of a

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).

Abacteria population is tripling every hour. by what factor does the population change in 1/2 hour? select all that apply

Using inductive reasoning, what are the next two number in this set? 2,3/2,4/3,5/4,