The bar graph in the following graphic represents fictional net exports in billions of dollars for five countries. Net
exports are obtained by subtracting total imports from total exports; a negative net export means the country imported
more goods than it exported.
Net Exports (Billions of dollars)
United States
Denmark
China
Germany
Spain
-100 -50 0 50 100
Net Exports (Billions of dollars)
-150
150
What is the sum of net exports for Germany and China ?
a -80 billion dollars
c.
b. 180 billion dollars
d.
90 billion dollars
150 billion dollars
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Oh i'm sorry. didn't see the options

First, think of what you know. you know that the number t the end of the equation will need to be subtracted because it is the money he lost from buying the lawn mower. and your first two weeks have negative profit, so that tells you that c and d are wrong. now you can plug any of the weeks into a and b to see which one works. i'll start with plugging week 1 into a.this isn't right because it says your answer for week one should be -90.so now we need to try the same thing with b.this one got you the right answer, (sometimes if you only check with one of the weeks multiple will work so you need to check with more of the weeks, but it worked out fine here)this means that b is the correct answer.let me know if you need more clarification. i hope this : )