What is the value of –7.94 + 2.13 – 4.65?

Let r = 3. what is the value of r + 58?

Use the graph of the sine function y=2sinθ shown below

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