haii can you help me please.

[tex]a. =3^{(-5+3-(-4))}=3^{(-5+3+4)}=3^2=9\\ \\b. =2^{((4+2)-(1+5))}=2^{(6-6)}=2^0=1\\ \\c. =(25\times10^{-2})^{(-2+4)}\\=(25\times10^{-2})^2\\=(25^2\times(10^{-2})^2)\\=625\times10^{(-2\times2)}\\=625\times10^{-4}\\=0,0625\\ \\d. =2^3\times7^3\times7^2\times2^{-5}\times7^{-5}\\=2^{(3-5)}\times7^{(3+2-5)}\\=2^{-2}\times7^0\\ \\= \frac{1}{2^2}\times1\\ \\= \frac{1}{4} [/tex]

[tex]e. =3^{(0\times2\times3)}\times5^{(2\times2\times3)}\div5^{(2\times2\times3)} \\ =3^0\times5^{12}\div5^{12}\\=1\times5^{(12-12)}\\=1\times5^0 \\ =1\times1=1[/tex]

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