what is the difference between "in" and "after" (two day) in two days I have an exam AND after two days I have an exam By the way, will it sound natural if I say time first then the rest words like this?

Which one is correct? income taken from income came from income from AND profit taken from profit came from profit from TANKS)

Can you check my essay? The bar chart shows data about turnover in dollars from sales of software games, DVD/video as well as CDs throughout the period of two decades. 
It is clear that one-out of three sales figures,CDs were the best selling compared to others. However, whereas global turnover of games software increased gradually a considerable rise can be seen in expenditure ofDVD or video with the figures nearly reaching those forCDs between 2000 and 2003. 
From 2000 to 2002, the sales of CDs saw a slight decrease by only a billion dollar each year, reaching just over $3 billion in 2002.During the the same period, the figures for DVD or video also grew rapidly from only $19 billion to nearly $36billion, while sales of game software almost doubled to approximetely %17 billion. 
By 2003, both CDs and DVD/video have been sold for 30 billion dollars worldwide. However, CDs accounted for a little higher than that for DVD/video and there were only a billion difference in the sales of game software from the figures of 2002.

here is photo: https://dbff86f7ed49a5461a57-0d6636d3ea523cf6c75a5e7b27f77011.ssl.cf1.rackcdn.com/notebook_image_662153.jpg

Can you check my essay? The bar chart shows data about turnover in dollars from sales of software games, DVD/video as well as CDs throughout the period of two decades. It is clear that one-out of three sales figures,CDs were the best selling compared to others. However, whereas global turnover of games software increased gradually a considerable rise can be seen in expenditure ofDVD or video with the figures nearly reaching those forCDs between 2000 and 2003. From 2000 to 2002, the sales of CDs saw a slight decrease by only a billion dollar each year, reaching just over $3 billion in 2002.During the the same period, the figures for DVD or video also grew rapidly from only $19 billion to nearly $36billion, while sales of game software almost doubled to approximetely %17 billion. By 2003, both CDs and DVD/video have been sold for 30 billion dollars worldwide. However, CDs accounted for a little higher than that for DVD/video and there were only a billion difference in the sales of game software from the figures of 2002.

what does mean CROSS SECTION? For example, cross section of wealty and poor families is it mean all wealty and poor families or something in the middle

What does mean "cross-section" Cross-section of socio-economic status
Does it mean - both wealthy and poor OR middle?

What do "ofthen as not" mean in below sentense? When we are sloving problems, for example, we may seek different answers, but, ofthen as not, find ourselves walking along the same well-trodden paths.often as not* (sorry)

what is the difference between state and stative verbs? Cambridge Grammar for IELTS-state verbs do not normally used in present continuous (no -ing) and we cant use "would" (when it means used to) with state verbs. Somewhere else I also have read that we can't use Would with stative verbs. As i found out there is no difference between state verbs and stative verbs. For example, the state verb change its meaning or can never be used in Continuous form while the rule for stative verbs is the same! Am I correct? By the way, can you explain me why in below sentence we can't use Would? She would live about 30 kilometers away from us.