The ratio of the loudness of Lalas earphones to the loudness of Polina's earphones to the loudness of Goffy's earphones is 6:5:3, respectively. If Polina's earphones have a loudness of 90 decibels, find the total loudness of all three earphones?

see attached

step-by-step explanation:

given the function as;

write the equation replacing f(x) with y

form   and fill a table containing values of y with corresponding values of x

you can take a range for   values of x as -3≤x≤3

solving for x=-3

for x=-2

repeat the same procedure to get the values of y for the remaining ,x=-1 to x=3

plot the values of y against values   of x and obtain the following graph

the correct answers i think are b. and d.

give me brainliest if it is correct!

answer is (b.

164 ft2)

a base  

18

b base  

7

h height  

8