Grandpa Ernie is shrinking! Over the past 4 years, his height decreased by a total of 2.4 . It decreased by the same amount each year.

What was the change in Grandpa Ernie's height each year?

(just comment the answer please)

An equation where variables are used to represent known values—function notation true or false

Tim's phone service charges $26.39 plus an additional $0.21 for each text message sent per month. if tim's phone bill was $31.64, which equation could be used to find how many text messages, x, tim sent last month?

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.