Which expression can be used to determine 50% of 42?

42 - 2
42 / 2
42 / 10
42 - 10

John bought 2 horses at rs 20000 each

Beth makes batches of bluberry muffins and banna muffins. each batchis 6 muffins. she makes 2.5 batches of bluberry muffins. how many batches of bananna muffins should beth make if she wants to have a total of 60 muffins?

For a field trip to the zoo, 4 students rode in cars and the rest filled nine busess. how many students were in each bus if 472 students were on the trip