There are 16 boys in an english class of 28 students. the ratio of boys to the total number of students in this class is typical of the whole school. there are 476 students in the school. about how many are boys?

How many units away is 1 from -6 on a number 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

In the xy-plane, if the parabola with equation passes through the point (-1, -1), which of the following must be true?