For the sequence given by an=3n +8, answer the following: a dings the first five terms. B find the sum of the first 25 terms. c is this an arithmetic sequence if so how can you tell

Match the following reasons with the statements given to create the proof. 1. do = ob, ao = oc sas 2. doc = aob given 3. triangle cod congruent to triangle aob vertical angles are equal. 4. 1 = 2, ab = dc if two sides = and ||, then a parallelogram. 5. ab||dc if alternate interior angles =, then lines parallel. 6. abcd is a parallelogram cpcte