Select all of the correct answers.
martin uses 8 of a gallon of paint to cover 5 of a wall. what is the unit rate at which martin paints in walls per gallo
1 walls per gallon
of a wall per gallon
o 1. walls per gallon
walls per gallon
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If y varies directly as x2 and y=6 when x=6, find the constant of variation.

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.

Sally deposited money into a savings account paying 4% simple interest per year. the first year, she earned $75 in interest. how much interest will she earn during the following year?