Which situation can be represented by the expression 1.3x?
-a the total cost of an item that is x dollars more than $1.30
-b the area of a rectangle with side lengths 1.3 and x
-c the amount of change when $1.30 is used to pay for an item costing x dollars
-d the number of square feet in each lot when 1.3 acres is partitioned into x equal sections

this was already solved by me with a different person. if you look it up in the search bar at the top of the page, you will get the answer.

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