Description
Here are my comments for 1-2e. If there is no comment, then your answers for 1-2e are correct. I do not see any answers for 2f onward.
For 1g, your answer is fine but could be improved by double clicking on the chart, selecting elements, and adding a fit line at total.
For 1j, the answer is subjective and your answer is not wrong. The answer could be improved by mentioning that X8 is not statistically significant. Also, there may be theoretical reasons for including X8 and the researcher may be interested in specifically testing the effect of X8.
For 2a, try the following and see if you can get a more complete table:
SPSS: Analyze-General Linear Model-Multivariate, Dependent Variables X19, X20, X21, Fixed Factor(s) X4 and X5, Options check Descriptive Statistics-Continue-OK