When solving an equation, Gabrielle's first step is shown below. Which property justifies Gabrielle's first step? \text{Original Equation:} Original Equation: 2(4 x) = 2(4x)= \,\, -1 −1 \text{First Step:} First Step: (2 \cdot 4) x = (2⋅4)x= \,\, -1 −1

Which of the following represents a number squared is equal to twenty more than nine times that number ? a) x squared = 9x + 20 b) x squared = 20x + 9 c) x squared > 9 + 20x d) x squared = 9 + x + 20

Janet drove 300 miles in 4.5 hours. write an equation to find the rate at which she was traveling

Now 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.