A. It is 176^2 or 30976 or 3.0976 x 10^4 whatever your prefer
B. 972
C. It is 0.00548697 or 4/729 or (2/27)^2 whatever your prefer
D. It is -16 x 20^4 or -2560000 whatever your prefer
E. x^4 y^4
F. h^10 k^6
G. m^11 n^15
H. b^2 d^6
....,,,,,,, you welcome !!!!!! :)
