Respuesta :

Answer:

D. 72/100

Step-by-step explanation:

3/10 is equal to 30/100.

42/100 + 30/100 = 72/100

i hope that made sense. good luck!

elikasutton

Answer:

D, 72/100

Step-by-step explanation:

Ignore the extra two blocks for now

then add the four tens and the three ten together. 30 + 40 = 70

Then bring back the extra two blocks and add them to the end.

Hope this helps! :)

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