Since there is 6 times more snow in city B than in city A, 6 times 58.7 is 352.2.
Now, the problem say says, " This is 12.5 inches more than six times the snowfall in city B" so, you have to add 12.5 to 352.2.
352.2+12.5= 364.7
ANSWER: The annual snowfall in city B is 364.7 inches.