The code in your first post does not match the code in your later photograph.
In the first one you have space in the middle of the dataset name, before the digit 6.
proc glm data= homework 6;
In the photograph the code is missing the semi-colon to end the PROC statement. So instead of a PROC statement and a MODEL statement you have just a PROC statement with a MODEL option, which is invalid syntax for PROC GLM.
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