1) 9^(-4) 27^(2) = (1/9^4) (27^2) = (1/6561) 729 = 0.1111 729 = 81
2) 32^(-5) : 64^(-4) = (1/32^5) : (1/64^4) = (1/33554432) : (1/16777216) = (1/33554432) * 16777216 = 0.5
1) 9^(-4) 27^(2) = (1/9^4) (27^2) = (1/6561) 729 = 0.1111 729 = 81
2) 32^(-5) : 64^(-4) = (1/32^5) : (1/64^4) = (1/33554432) : (1/16777216) = (1/33554432) * 16777216 = 0.5