At the neighborhood grocery, 4.5 pounds of chicken breast cost $22.05. How much would it cost to buy 3.8 pounds of chicken breast?

18.62

Step-by-step explanation:

It would cost $18.62 for 3.8 pounds.

Step-by-step explanation:

You divide $22.05 by 4.5. That is the cost per pound. After that you multiply the number you get by 3.8.

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