A car with 12 gallons of gasoline drives 312 miles until the tank is empty. Write a linear equation that describes the amount of gas left in the car, y, after driving x miles.

School has 204 sixth grade students. if the sixth grade is 30% of the total school, how many students are in the middle school?

Me max recorded the heights of 500 male humans. he found that the heights were normally distributed around a mean of 177 centimeters. which statements about max’s data must be true? a) the median of max’s data is 250 b) more than half of the data points max recorded were 177 centimeters. c) a data point chosen at random is as likely to be above the mean as it is to be below the mean. d) every height within three standard deviations of the mean is equally likely to be chosen if a data point is selected at random.

Joe has a rectangular chicken coop. the length of the coop is 4 feet less than twice the width. the area of the chicken coop is 510 square feet. what is the length of the chicken coup?