The radius of a circle is 18 inches. What is the circle's area?

What is the solution to the inequality

Pam buys a sleeve of ball bearings for her skateboard. each of the bearings is 1 1/5 inches wide. the sleeve is 9 3/5 inches long. how many ball bearings are in the sleeve? show your work.

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?