Help me please if your right ill give you the brainliest (mybad if i spelled it wrong)

Segment xy is dilated through point m with a scale factor of 2. which segment shows the correct result of the dilation

Acircle has a circumference of 28.36 units what is the diameter of the circle

Suppose y varies directly with x. write a direct variation equation that relates x and y. then find the value of y when x=12 y=7 when x=3