9 style that head

<PLEASE USE THE FOLLOWING TEMPLATE TO HELP YOU CREATE A GREAT POST!>

<Below this line, add a link to the EXACT exercise that you are stuck at.>

It is showing I have some problem with the first th tag .I think I have correctly added style and colspan attribute.I don’t know what’s the problem .Please help me find it out .

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on line 8, after collapse a quotation mark (") is missing