1.
[tex]4^2\times4^2=16\times16=256[/tex]
answer B
2.
[tex]\frac{3^7}{3^5}=3^{7-5}=3^2=9[/tex]
answer C
3.
[tex]4^{-3}=\frac{1}{4^3}=\frac{1}{64}[/tex]
answer D
4.
[tex]58^0=1[/tex]
every number with exponent zero is equal to 1
answer A
5.
[tex]5^{10}\times5^{-12}=5^{10+(-12)}=5^{-2}=\frac{1}{5^2}=\frac{1}{25}[/tex]
answer B
6.
[tex]\frac{7^8}{7^{10}}=7^{8-10}=7^{-2}[/tex]
answer A
7.
[tex]\frac{4^{12}\times4^8}{4^{13}}=\frac{4^{12+8}}{4^{13}}=\frac{4^{20}}{4^{13}}=4^{20-13}=4^7[/tex]
answer C
