Which expression gives the same value as 3 + 5(x + 2) − 4 when you substitute x = 3 and x = 4?
a.) x − 15
b.) 5x − 10
c.) 7x − 12 − 10
d.) 5x + 9

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

the answer is 99.