Please help! I need this answer extremely quickly!

Solve the equation from Part C (y/2=x/1) so that y is by itself on one side of the equation. How are this equation and the equation of the line (y=2x) related? What does this relationship mean about any triangle created using this line?

Muscles, a membership-only gym is hoping to open a new branch in a small city in pennsylvania that currently has no fitness centers. according to their research approximately 12,600 residents live within driving distance of the gym. muscles sends out surveys to a sample of 300 randomly selected residents in this area (all of who respond) and finds that 40 residents say they would visit a gym if one was located in their area. based on the past survey research, muscles estimates that approximately 30% of these respondents would actually join the gym if they opened one in the area. based on this information and the results of the sample survey, about how many residents should muscles expect to join its new branch? a) 134 b) 504 c) 1,680 d) 3,780

Tcan be concluded that % of the seniors would prefer to see more candid pictures in this year's edition of the yearbook.

Can someone pls ! pls answer all. no explanation needed..