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It's C

Step-by-step explanation:

You have to first figure out that basically, it's whatever number P is, minus 2.50. The answer could have been A, but if you look closely, at the six dollar one, it says 3.50 instead of 2.50. That's why C is correct.

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

21

step-by-step explanation: