1.D
2.A
3.
[tex]a) {1000}^{7} = ( {10}^{3} {)}^{7} = {10}^{21} b) {100}^{16} = ( {10}^{2} {)}^{16} = {10}^{32} \\ c) {1000}^{300} = ( {10}^{3} {)}^{300} = {10}^{900} \\ d)( {100}^{5} {)}^{8} = {100}^{40} = ({10}^{2} {)}^{40} = {10}^{80} [/tex]
4.
[tex] {5}^{9} \times {2}^{9} = {10}^{9} \\ {10}^{9} \div {10}^{5} = {10}^{4} \\ {10}^{4} \times {0.4}^{4} = {4}^{4} \\ {4}^{4} \div {16}^{4} = ( \frac{4}{16} {)}^{4} = ( \frac{1}{4} {)}^{4} [/tex]
5.
[tex]345000 {m}^{2} = 3.45 \times {10}^{5} {m}^{2} [/tex]
A.
6.
P
P
F
P
