Lexi runs a race at school. She runs at a rate of 4 miles
per hour for the first mile, then increases her rate to 5
miles per hour until the last mile when she runs 6 miles
per hour. Which equation below represents her time, T, in
hours, if she runs a total of x miles?

Abby is collecting rainfall data. she finds that one value of the data set is a high-value outlier. which statement must be true? abby will use a different formula for calculating the standard deviation. the outlier will increase the standard deviation of the data set. the spread of the graph of the data will not change. abby will not use the mean when calculating the standard deviation.