II. In each of the following y varies directly as x. Find the Values as indicated.
1. if y = 12 when X= 4, find y when x=12
2. if y=-18 when x=9, find y when y=7
3.if y=-3 when x= -4, find X when y=2
4.if y=3 when x=10, find x when y= 1.2
5.if y=2.5 when x=.25, find y when x=.75
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