Please help with this problem

41/17 as a decimal rounded to the nearest hundredth

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?

Is the product of two rational numbers irrational or rational? first, make a hypothesis by multiplying two rational numbers. then, use variables such as x=a/b and y=c/d and the closure property of integers to prove your hypothesis.