Solve for r. You must write your answer in fully simplified form.
2r = -17

Find the slope of the line that contains the following points. r(-2, 4), s(6, -2)

Li buys supplies so he can make and sell key chains. he begins to make a profit only after he sells 4 key chains. what point on the graph makes the most sense in this situation?

Which of the following is the explicit rule for a geometric sequence defined a recursive formula of a -5a for which the first term is 23?