$$( - 5 ) ^ { 2 } \times 6 ^ { - 2 } \times 3 ^ { 2 }$$
$\frac{25}{4}=6.25$
$$25\times 6^{-2}\times 3^{2}$$
$$25\times \frac{1}{36}\times 3^{2}$$
$$\frac{25}{36}\times 3^{2}$$
$$\frac{25}{36}\times 9$$
$$\frac{25}{4}$$
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$\frac{5 ^ {2}}{2 ^ {2}} = 6\frac{1}{4} = 6.25$