Suppose that y varies directly with x and at the same time varies inversely with z and y=12 when x=6 and z=-2. Write the equation that models the relationship.

A: y=-4x/z

B: y=4x/s

C: y=-4z/x

D: y=4z/x

EB=2x+3. And EF=6x-7. What is the value of X?

At the beginning of grade 6 the number of advanced math to the number of regluar math students was 3:8 however after taking placement tests students were moved around chaning the ratio of the number of advanced math students to the number of regluar

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