a metal scaffolding is inserted on a building to create a rhombus ABCD. if diagonal to AC has a slope of 4/5, what is the slope of diagonal BC?​

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In dire need~! describe how to use area models to find the quotient 2/3 divided by 1/5. check your work by also finding the quotient 2/3 divided by 1/5 using numerical operations only.

If f(x) = 3x2 - 2x+4 and g(x) = 5x + 6x - 8, find (f-g)(x).