Since this point is located in the fourth quadrant you have to rotate it 270 degrees counterclockwise which would end up being in third quadrant. which means the new point would be (-6,-9)
12 ounces of juice mix 1 ounce of juice mix
__________________ = __________________
36 ounces of water 3 ounces of water
For every ounce of juice mix, there are 3 ounces of water.
Hopefully, this answers your question.
7-2c= c - 2 this is the answer