answer: 25 and -31
step-by-step explanation: notice that if all the negatives were positive, you'd have the arithmetic sequence one, 7, 13, 19, on and on, adding vi each time. therefore essentially we have a geometrical and arithmetic sequence combined, with the geometric sequence creating it positive, and negative, and also the arithmetic sequence adding vi each time. this suggests the answer(s) are twenty-five and -31.
the measure of ∠1 is 63°
vertical angles are non-adjacent angles that form on either side of intersecting lines. as a result, the two angles are congruent.