Question

simplify and express

Answer 1

A){(3/7)^-2)}³
→{(7/3)²}³
→(49/9)³
→117649/729
B)(2/3)÷{(2/3)^0}³
→2/3÷1³
→2/3
C){(3/8)²}^-4×(8/3)²×3²÷5²×(3/5)^-2
→(9/64)^-4×(64/9)×9×1/25×(5/3)²
→(64/9)⁴×64×1/9
→(64/9)^5
→1073741824/59049
(ÆÑẞWĒRẞ)