How can you tell if 2 figures are similar

Which statement most accurately describe why the division property of exponents does not apply to the expression (-8)^2/(-3)^4

Write the expression as a single natural logarithm. 2 in a - 4 in y

Non-euclidean geometry was discovered when, in seeking cleaner alternatives to the fifth postulate, it was found that the negation could also be true a. true b. false