Maximize c = 6x+4y constraints: x + 2y less than or equal to 10 3x + y less than or equal to 15 x greater than or equal to 0, y greater than or equal to 0 plot it on a graph

The length of an intercepted arc of a central angle of a circle is 4 cm. if the radius of the circle is 5 cm what is the measurement of the central angle to the nearest whole degree

597008.439431 to the nearest thousand

The graph represents f(x)=[x]+3. what is f(-2.2)?