1) the temperature at the end of the day was 64 degrees. the temperature had increased twice during the day, once by 8 degrees and another time by 4 degrees. which expression shows what the temperature was at the start of the day?

a. 64 - 8 - 4
b. 64 + 8 +4
c. 64 - 8 + 4
d. 78 + 5 + 7

2) which statement about the product is true?
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7.56 · 6.7

a. the product is irrational
b. the product is rational
c. the product is neither rational or irrational
d. the nature of the product cannot be determined

Cor d? ? 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.