84005221 Blade 21" Daye/Hyper Tough MNA152701 Compatible with 2105200317, 2105200317A

will this blade fit Model # MNA152702?

None of the pictures show the same holds that secure the blade. The holes on the old blade are slanted? Is there an adapter?

is this blade compatible with murry push mower mna152901?

Does this fit a murray mower mna152703?