On the first one I know it is not Noah so please don´t put Noah. Also make sure to explain please

Step-by-step explanation:

For the question 5, Noah is right, as 75/100 x 10 = 7.5, and 25/100 x 30 = 7.5

So both of then have equal amount, therefore, Noah is right.

answer: c i think

step-by-step explanation:

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