Solve.

7n + 8 = 71

n =

The table shows a pattern of exponents. what is the pattern as the exponents decrease?

Which undefined geometric term is described as a location on a coordinate plane that is designed by an ordered pair (x,y) ?

The distribution of the amount of money spent by students for textbooks in a semester is approximately normal in shape with a mean of $235 and a standard deviation of $20. according to the standard deviation rule, how much did almost all (99.7%) of the students spend on textbooks in a semester?