At a country concert, the ratio of number of the boys to the number of girls is 2: 7 if there are 250 more girls than boys how many boys are at the concert

Asystem of equations has 1 solution. if 4x-y=5 is one of the equations , which could be the other equation ?

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.

Bo is buying a board game that usually costs bb dollars. the game is on sale, and the price has been reduced by 18\%18%. what could you find the answer?