Provide an appropriate response.How can you rewrite a subtraction problem to make it easier to solve? Give an example.
What will be an ideal response?
Change subtraction sign to addition and change the sign of the subtrahend to its opposite. 
Mathematics
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Add or subtract as indicated. Write your answer in the form a + bi.(2 - 3i) + (9 + 5i)
A. -11 - 2i B. 11 + 2i C. -7 + 8i D. 11 - 2i
Mathematics
Multiply and simplify.
? 
A. 
B. 
C. 
D. 
Mathematics
Solve the problem.The formula 
represents the number of households N, in thousands, in a certain city that have a computer x years after 2010. According to the formula, in what year would there be 217 thousand households with computers in this city?
A. 2021 B. 2020 C. 2018 D. 2019
Mathematics
Find the distance between the pair of points. Where appropriate, give an approximation to three decimal places.(11, -8) and (-44, -20)
A. 
? 43.278
B. 
? 56.294
C. 1873
D. 305
Mathematics