Find the equivalent numbers.

a$)\frac{27}{6}(,{)}_2$

b$)8516=(,{)}_2^2$

c$){70}_8=(,)10$

d$){11000011}_2=(,{)}_8$

e$)$

f$)778=(,{)}_2$

Change the sign of each of the following two's complement numbers.

a$).01011100=>$

b$)00001111=>$

c$).10101111=>$

d$)1111111=>$

e$)01010101=>$