Hello: just download this app and i dont know how to solve these problems. i will appreciate the anwser:

Ou have a 20-ounce bottle of juice. you pour out 14 of the bottle to share with a friend. if you pour out 3 ounces for yourself, what fraction of the 20 ounces will be left in the bottle? clear check 35 25 12 1320

45% of the trees in a park are apple trees. there are 27 apple trees in the park. how many trees are in the park in all?

Anyone? 15m is what percent of 60m; 3m; 30m; 1.5 km?