Ursula has 1/2 cup of butter. she uses 1/4 cup of butter to make a batch of brownies. how many batches of brownies can ursula make with 1/2 cup of butter?

To which sets of numbers does -12 belong? choose all answers that are correct. a) natural numbers b) integers c) real numbers d) irrational numbers

Im so bad at fractions they are not my best math thing to work on

Two trains leave a station on different tracks. the tracks make an angle of 130°, with the station as a vertex. the first train travels 100 km and makes its first stop at point a, while the second train travels 200 km and makes it first stop at point b. how far apart are the trains when both are at their first stop? round the answer to the nearest integer. a) 65 km b) 139 km c) 224 km d) 275 km