McLEAN, Va. (AP) — The average long-term mortgage rate was unchanged from last week as the economy continues to show encouraging signs even as hospitalizations from the delta variant of the coronavirus remain elevated. Mortgage buyer Freddie Mac said Thursday that the average rate for a 30-year mortgage held at 2.87% as demand for homes remained stable. The benchmark rate, which peaked this year at 3.18% in April, stood at 2.93% this time last year.