Question

Please solve this question​

Answer 1

Answer:

-2.75

Step-by-step explanation:

Answer 2

Step-by-step explanation:

${ (\frac{a}{b}) }^{ - n} = { (\frac{b}{a}) }^{n}$

${( \frac{ - 3}{4} )}^{ - 2} = { \frac{ 4}{ - 3} }^{2} = \frac{16}{9}$

please mark me as Brainliest.