Help plz? I don’t know what to write

Which is equivalent to 10/12? options: 10/18 5/6 3/12 9/11

Given: pb tangent pv,pu secants if m = 80° and m = 30°, then m 3 = 55 40 25

Apet store donated 50 pounds of food for adult dogs, puppies and cats to an animal shelter. 19 3/4 pounds was adult dog food and 18 7/8 pounds was puppy food. how many pounds of cat food did the pet store donate?