Events A and B are mutually exclusive. Find P(A or B), rounding to the hundredths. (Answer
decimal form.)
P(A)=0.25, P(B)=0.5

Since the question is related to fencing, that is, the total length of the rectangular garden , so we need to check out the perimeter of the garden .

ANd perimeter of rectangle = 2(length + width)

Here the sides are 35 feet and 25 feet

So perimeter = 2(12+35) =2*47=94 feet .

So they have to buy 94 feet Benson .