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6. A business had annual retail sales of $128 000 in 2003 and $215 000 in 2006. Assuming that the annual increase in sales follows a linear pattern, calculate the average rate of increase in sales per year. a. $21 750 b. $87 000 c. $14 500 d. $29 000 7. A new furniture company found that x hundreds of its leather sofas will sell at a price of 3000 - 4x dollars per sofa. The cost of producing these sofas can be expressed by the function C(x) = 100 000 + 180 000x + 24x^2. Determine how many sofas the company must sell to maximize its profit. a. 3750 sofas b. 750 sofas c. 14 151 sofas d. 2083 sofas

          6. A business had annual retail sales of $128 000 in 2003 and $215 000 in 2006. Assuming that the annual increase in sales follows a linear pattern, calculate the average rate of increase in sales per year.
a. $21 750
b. $87 000
c. $14 500
d. $29 000

7. A new furniture company found that x hundreds of its leather sofas will sell at a price of 3000 - 4x dollars per sofa. The cost of producing these sofas can be expressed by the function C(x) = 100 000 + 180 000x + 24x^2. Determine how many sofas the company must sell to maximize its profit.
a. 3750 sofas
b. 750 sofas
c. 14 151 sofas
d. 2083 sofas

6. A business had annual retail sales of 128 000 in 2003 and215 000 in 2006. Assuming that the annual increase in sales follows a linear pattern, calculate the average rate of increase in sales per year.
a. 21 750
b.87 000
c. 14 500
d.29 000

7. A new furniture company found that x hundreds of its leather sofas will sell at a price of 3000 - 4x dollars per sofa. The cost of producing these sofas can be expressed by the function C(x) = 100 000 + 180 000x + 24x^2. Determine how many sofas the company must sell to maximize its profit.
a. 3750 sofas
b. 750 sofas
c. 14 151 sofas
d. 2083 sofas

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