How many people were surveyed in the bar graph 9 30 18 25​

30

Step-by-step explanation:

9 + 9 + 6 + 5 + 1 = 30

hope it you

step-by-step explanation:

sin(7pi/6 - pi/3)  

= sin(7pi/6 - 2pi/6)  

= sin(5pi/6)  

= sin(pi - pi/6)  

= sin(pi/6)  

= 1/2  

sin 7pi/6 - sin pi/3  

= sin (pi + pi/6) - sin pi/3  

= -sin pi/6 - sin pi/3  

= -1/2 - sqrt(3)/2  

= -(1+sqrt(3))2

answer: you need the equation in the question so i can answer it

step-by-step explanation: