para hacer hot cakes a 12 personas sin están tres huevos Cuántos huevos necesitamos para preparar hot cakes a 20 personas​

Express the following as a function of a single angle. cos(60) cos(-20) - sin(60) sin(-20)

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?

Helena lost her marbles. but then she found them and put them in 44 bags with mm marbles in each bag. she had 33 marbles left over that didn't fit in the bags.