Riley and francisca's both commute to work. riley's commutes on the train takes 12 minutes more than 1/2 as many minutes as francisco commute by car. it takes riley 36 minutes to get to work. write an equation to determine how many minutes it takes franceska to get to work.

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

Write the rational number in lowest terms 99/-15

Ineed i been stuck on this question since yesterday