Question

$3 { }^{ - 2} \times 0.5 {}^{ - 2}$

Answer 1

3^(-2) = 1/3^2 = 1/9
(1/2)^(-2) = 1/(1/2)^2 = 1/(1/4) = 4

4 * 1/ 9 = 4/9

Answer 2

${3}^{ - 2} \times {0.5}^{ - 2} = \\ = {(3 \times 0.5)}^{ - 2} = \\ = {(1.5)}^{ - 2} = {( \frac{3}{2} )}^{ - 2} = \\ = {( \frac{2}{3} )}^{2} = \frac{4}{9}$