The diffenrece between the panchromatic image and the multispectral mode, is that vegetation, urban areas and land in the multispectral is represented in blue while on the panchormatic image its hard to tell because it is in greysacle. You can assume that the darker shade of grade is water and the lighter ones or depending on the type of color shade wether it is vegetation , land , or urban areas.
on question seven it says multispectral mode RGB:(2,3,4) so this is the photo when i changed the RGB as specified.
RGB (4,3,2)
RGB(1,1,1)
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