3.5.25 Suppose U = {3,5,7,9,10,12,15,16,18} is the universal set and A = {3,5,7,9,10,12,16,18). What is A?

Adj has a total of 1075 dance and rock songs on her system. the dance selection is 4 times the size of the rock selection. write a system of equations to represent the situation.

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?

Acertain volume of water contains 100000 hydrogen atoms and 50,000 oxygen atoms how many hydrogen atoms are in a volume of water containing 4 million oxygen atoms