Need help! 8th grade math!! test due soon.:)

(05.08a)triangle abc is transformed to similar triangle a′b′c′ below: a coordinate plane is shown. triangle abc has vertices a at 2 comma 6, b at 2 comma 4, and c at 4 comma 4. triangle a prime b prime c prime has vertices a prime at 1 comma 3, b prime at 1 comma 2, and c prime at 2 comma 2. what is the scale factor of dilation? 1 over 2 1 over 3 1 over 4 1 over 5

What is the 17th term in the arithmetic sequence in which a6 is 101 and a9 is 83

Segment wx is shown explain how you would construct a perpendicular bisector of wx using a compass and a straightedge