$($a$)\frac{100}{(10s+1)(s+1)}$

$($b$)\frac{10s}{(s+1)(0\mathrm{.}1s+1{)}^2}$

$($c$)\frac{s+1}{(0\mathrm{.}1s+1)(10s+1)}$

$($d$)\frac{s-1}{(0\mathrm{.}1s+1)(10s+1)}$

$($e$)(10s+1{)}^2$

$($f$)(10+s{)}^2$