Simon and greg shared pencils in the ratio 7: 5. if simon gives away 30 pencils and greg gets 30 more pencils, they will have the same number of pencils. how many did each of them have in the beginning?

4th option is correct xy=-10

if this was to u plzz mark me the brainliest

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