Hii! Help me with this please

What is the rescursive formula for this geometric sequence? 7, -14, 28, -56

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

The angles below are supplementary. what is the value of x? a pair of supplementary angles is shown. one angle measures 7x + 33, and the other angle measures 70. 5.3 8.14 11 14.7