Answer:
104
Explanation:
20 + (20*4) + (20*0.2)
= 20 + 80 + 4
= 104
100%= 1.00
so
420%= 4.20
Multiply 4.20×20
84
now add the original 20
104. She has 104 boxes in total.
Hope this helps! If you have any questions on how I got my answer feel free to ask. Stay safe!
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