Respuesta :

❊421.5 in expanded form is written like:-

♥421.5
♥Expanded form:- 400.0 + 20.0 + 1.0 + .5
♥= 421.5.

❊So, 421.5 in expanded form is:- 400.0 + 20.0 + 1.0 + .5.

Hope I helped ya!!

❉❆Happy Holidays❉❆
um i think the answer is 400+20+1+0.5 i think thats right