Three friends go bowling at "Strike Out" on Friday night. The cost per person per game is $5.30. The cost to rent shoes is $2.50 per person. Their total cost is $55.20. How many games of bowling did the friends play?

They played 3 games of bowling.

Step-by-step explanation:

Assuming each person only rents one pair of shoes, that would come out to $7.50.

Subtract this amount from the total ($55.20) and you get $47.70 leftover.

Divide the leftover amount by the price of games per person ($5.30) and you'll get nine, divide that by the number of people playing, since it's per person, and you can determine they played three games.

23

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