Given the sequence in the table below, determine the sigma notation of the sum for term 4 through term 15.
n | an
1 | 5
2 | −10
3 | 20

Elizabeth is using a sample to study american alligators. she plots the lengths of their tails against their total lengths to find the relationship between the two attributes. which point is an outlier in this data set?

Mr.walker is looking at the fundraiser totals for the last five years , how does the mean of the totals compare to the median?

Which statement best explains whether the table represents a linear or nonlinear function? input (x) output (y) 2 5 4 10 6 15 8 20 it is a linear function because the input values are increasing. it is a nonlinear function because the output values are increasing. it is a linear function because there is a constant rate of change in both the input and output. it is a nonlinear function because there is a constant rate of change in both the input and output.