Solve the problem.Your company uses the quadratic model y = -11x2 + 350x to represent how many units (y) of a new product will be sold (x) weeks after its release . How many units can you expect to sell in week 19?
A. 6859 units
B. 6441 units
C. 10,621 units
D. 2679 units
Answer: D
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Solve.An electronics manufacturer's revenue R for selling x mobile phones is given by 
A competing electronics manufacturer's revenue for selling a similar mobile phone is 
Under what circumstances will both manufacturers make the same revenue?
A. They will make the same revenue if they sell 390 phones. B. They will make the same revenue if they sell 0 or 195 phones. C. They will make the same revenue if they sell 0 or 390 phones. D. They will never make the same revenue.
Add and subtract as indicated. Simplify and leave the numerator and denominator in your answer in factored form.
+ 
A. 
B. 
C. 
D. 
Find the greatest common factor, GCF, of the expressions.80, 140
A. 2 B. 1 C. 20 D. 5
Find the numerical value of the expression for 
and 
4x
A. a) 72 b) 16 B. a) 8 b) 22 C. a) 22 b) 8 D. a) 16 b) 72