Which measurement most accurately describes the height of a giraffe? 25 m 750 cm 5 m 9,600 mm

Assume that y varies inversely with x. if y=1.6 when x=0.5 find x when y=3.2

Me because i don't understand how to do it.: )

The soccer team at your school wants to spray paint a design on the middle of the playing field. the design will include this soccer ball. you have been asked to enlarge the drawing of this ball to use for the painting on the field. explain how to accurately enlarge or reduce the size of objects such as the soccer ball.