Probably 2 hours.
You can't drive 100 miles in 55 seconds, or 35 minutes, or 70 minutes (1.16 hrs.)
Hope this helps, good luck! :]
50$ per month for 12 years would mean she spent only (50 x 12) 600$ per year.
She actually spent $711, her forecast was off target by (600-7111) $111.
She exceeded her budget by $111
-54-7r=10+25r
-7r-25r=10+54
-32r=64
r=64/-32
r=-2
