Simplify 9(30 - 2). I will mark you brian list just plz help i need a A+

Gretchen is setting up for a banquet. she has 300 chairs and needs to distribute them evenly among t tables. how many chairs should she put at each table? write your answer as an expression.

How is working backward similar to solving an equation?

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?