If y = 4, what is the value of 12y?

Iam so stuck. what is the worked out answer for this question?

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?

Compare the following pair of numbers a and b in three ways. a. find the ratio of a to b. b. find the ratio of b to a. c. complete the sentence: a is percent of b. a=120 and b=340 a. the ratio of a to b is . b. the ratio of b to a is . c. a is nothing percent of b.