By CHRIS COLLINS
(undated) — Massachusetts gas prices continue to trend upward. AAA of Southern New England reports that the average price of a gallon of regular unleaded has gone up eight cents in the last week to $3.35. That is 26 cents higher than a month ago, and $1.25 higher than the same period in 2020. Massachusetts’ average price is 3 cents lower than the national average, where prices have risen for 27 consecutive days.