To be blunt, it looks like you just copy/pasted a wall of text from whatever you're working on. Ask an actual question, and format the wall of text so that we don't have to decipher it ourselves. Don't expect people to help solve a problem like that if it looks like you gave no thought in posting it
11/3 is the same as 11 divided by 3 so that wiuld be 3 remander 2 so it would be 3 2/3
Y-6=7(x-3)
The point-slope intercept form of a line that has a slope of 7 and passes through the point (-6,3) is y - 6 = 7 (x - 3)
An equation typically has a slope. Since there is no equation given, I am assuming that 1/7 is the slope:)
1/7 simplified into decimal form is is 0.1428!
It's more efficient to hold a random drawing because the probability is higher.
For every 2 person, 1 person gets to go to the concert.
Answer is 1/2 aka 0.5 aka 50%
Hope this helps. - M