What is 2÷9×47+66-50×89=???

Lol look at my friends cat

Problem fathi wants to print out a pdf document that is 48 pages long. to save paper, he decides to print on both sides of each sheet and to print two pages on each side of the sheet. how many sheets of paper will he need?

How many $20 bills do you need to have to make $280

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?