Read the measurement to the correct number of significant figures in the following laboratory glassware.

a$)32\mathrm{.}4$

b$)32\mathrm{.}40$

c$)32\mathrm{.}1$

d$)32\mathrm{.}36$

e$)33\mathrm{.}60$

Which prefix multiplier expresses the measured volume of $18\mathrm{.}7{10}^{5}L$ without an exponent?

a$)18\mathrm{.}7mL$

b$)1\mathrm{.}87ML$

c$)187ML$

d$)18\mathrm{.}7KL$

e$)1\mathrm{.}87cL$

Express the quantity $1\mathrm{.}099{10}^{-10}s$ in $ns.$

a$)1\mathrm{.}099{10}^{-7}ns$

b$)1\mathrm{.}099{10}^{2}ns$

c$)1\mathrm{.}099{10}^{-6}ns$

d$)1\mathrm{.}099{10}^{3}ns$

e$)1\mathrm{.}099{10}^{-1}ns$