Nata) The formula S-
gives the partial sum of an arithmetic sequence. What is the formula solved for an?
2S-a, n
o a
2S+a,
n
O a, - 2S+an+n
O a, = 2S-a, n+n

(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