The sea surface temperatures range from −9°C to 39°C . Find the difference between the maximum and minimum temperatures.

PLz help

How do you use the elimination method for this question? explain, because i really want to understand!

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

Two triangles can be formed with the given information. use the law of sines to solve the triangles. b = 49°, a = 16, b = 14