1 pt

3.

$\frac{{10}^{-6}}{{10}^{-4}}\times \frac{{10}^{-7}}{{10}^{-2}}$

A

${10}^{-6}$

B

${10}^{6}$

C

${10}^{-7}$

D

${10}^{7}$

1 pt

5.

Put the following numbers in order from least to greatest.

$1.1\times {10}^{10}1.01\times {10}^{9}1.11\times {10}^{3}$

A

$1.01\times {10}^{9}1.11\times {10}^{3}1.1\times {10}^{10}$

B

$1.11\times {10}^{3}1.01\times {10}^{9}1.1\times {10}^{10}$

C

$1.1\times {10}^{10}1.11\times {10}^{3}1.01\times {10}^{9}$

D

$1.1\times {10}^{10}1.01\times {10}^{9}1.11\times {10}^{3}$

1 pt

7.

Miss Sheldon found a pint of ocean water contained beneficial bacteria numbering $1.7\times {10}^{5}.$

Express this as a standard number.

A

17,000

B

170,000

C

1,700,000

D

17,000,000

1pt

11.

**Simplify the following expressions in scientific notation. **

$2,200+2\times {10}^{4}$

1pt

12.

${3}^{3}\u201311\times 3.2\times {10}^{5}$