Probability=desired outcomes/total possible outcomes
so
desired outcomes is the 'not wedding' photos
there are 4 vacation and 8 holiday
so 12 'not wedding' photos
12=desired outcomes
total outcomes is 13+4+8=25
so the probablity would be 12/25 or about 48%
hi <3
439.612, 439.261, 439.216, 439.126
hope this helps :)
Answer:

Step-by-step explanation:
Given

Required
The surface area
This is calculated as:

So:




There are many different ways to figure this out but may I ask you one question....do you know whether the two legs are congruent or just the right angle?