An ice block with a starting volume of 144 in^3

We just started the introduction into circles and i have no idea how to do this.

Asquare has a side that measures 11 units. what is the area of a circle with a circumference that equals the perimeter of the square? use 3.14 for π, and round your answer to the nearest hundredth. 1519.76 units2 379.94 units2 616.56 units2 154.14 units2

Skie rented a boat for $16.50 per hour. her total rental fee was $49.50. for how many hours did skie rent the boat