Pls
which polynomial functions have only the roots 1 and 6? check all that apply.
a) f(x) = (x – 1)(x – 6)
b) f(x) = 3(x + 1)(x + 6)
c) f(x) =(3x – 1)(x – 6)
d) f(x) = 3(x – 1)(x – 6)
e) f(x) = 6(x – 1)(x – 6)

The graph shows the decibel measure for sounds depending on how many times as intense they are as the threshold of sound. noise in a quiet room is 500 times as intense as the threshold of sound. what is the decibel measurement for the quiet room? 20 decibels28 decibels200 decibels280 decibels