last year 72 girls signed up for signed up for the seventh-grade volleyball team. this year, 63 girls signed up. what is the percent decrease in the number of girls signing up for volleyball from last year to this year

The water has been on the stove y=9.5x+62.1 after how many minutes will the tempature be 138.1 f

Amerchant has coffee worth $60 a pound that she wishes to mix with 50 pounds of coffee worth $90 a pound to get a mixture that she will sell for $70 a pound. how many pounds of the & 60 coffee should be used?

Someone answer asap for ! 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.