Question

please answer my questions with explanation please.​

Answer 1

$( \frac{x}{y} ) = { (\frac{3}{2} )}^{ - 2} \div {( \frac{3}{7}) }^{0} \\ \frac{x}{y} = {( \frac{2}{3}) }^{2} \div 1 \\ \frac{x}{y} = {( \frac{2}{3} )}^{2} \\ {( \frac{x}{y}) }^{ - 3 } = { ({( \frac{2}{3}) }^{2} )}^{ - 3} \\ { (\frac{x}{y}) }^{ - 3} = {( \frac{2}{3} )}^{ - 6 } \\ { (\frac{x}{y} )}^{ - 3} = {( \frac{3}{2} )}^{6} \\ {( \frac{x}{y} )}^{ - 3} = \frac{729}{64}$

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