$\%$Define variables a$,$ b$,$ c$,$ and d

a $=2\mathrm{.}2$;

b $=5\mathrm{.}1$;

c $=-3\mathrm{.}1$;

d $=1\mathrm{.}8$;

Answer$1=$ sqrt$($a$^2+$ b$^2+$ c$^2)$;

Answer$2=$ a$*($b$+$c$)/25*$d$^2$;

Answer$3=($a$*$c$)/5*($b$+$d$)^(2/3)$;$\%$Define variables a$,$ b$,$ c$,$ and d

a $=2\mathrm{.}2$;

b $=5\mathrm{.}1$;

c $=-3\mathrm{.}1$;

d $=1\mathrm{.}8$;

Answer$1=$ sqrt$($a$^2+$ b$^2+$ c$^2)$;

Answer$2=$ a$*($b$+$c$)/25*$d$^2$;

Answer$3=($a$*$c$)/5*($b$+$d$)^(2/3)$;