Graph systems of equations graph the equations to find the solution. test the solution in both equations. show your work.

I need someone to help explain this to me. if you have social media, please tell me so I can talk to you any other ones

if you can explain how to do the first one and explain the formulas that would help. I just need someone to explain the first so I can apply to the rest.​

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

If you had $1,900,000, how many days would it take you to spend all if you spent $1 a second. (there are 86,400 seconds in a day)

Which of the following represents the length of a diagonal of this trapezoid?