On a test that has a normal distribution, a score of 80 falls three standard deviations above the mean, and a score of 56 falls one standard deviation below the mean. Determine the mean of this test.

Classify each polynomial by its degree and by its number of terms.

Quadrilateral abcd in the figure below represents a scaled-down model of a walkway around a historic site. quadrilateral efgh represents the actual walkway. abcd is similar to efgh. what is the total length, in feet of the actual walkway?

Which graph represents the function g(x) = |x + 4| + 2?