Solve the problem.A company produces two sizes of a dog house; large and small. If ? represents the number of large dog houses and s represents the number of small dog houses, then the polynomial 
describes the revenue from the sale of the two sizes of dog house. The polynomial 
describes the cost of producing the two sizes of dog house. If the company sells 40 large dog houses and 71 small dog houses in a month, what was the net profit or loss?
A. Net loss of $2370
B. Net loss of $370
C. Net profit of $370
D. Net profit of $2370
Answer: B
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If the supply and demand functions for a commodity are given by 
and 
, what is the equilibrium price and what is the corresponding number of units supplied and demanded? Round your answer to two decimal places.
?
A. 
B. 
C. 
D. 
E. 
Solve the problem.A roll of fake grass carpeting for patios sells for $20 and can cover 15 square feet of area. Fred wants to carpet his patio which measures 6 yd by 8 yd. How much will it cost Fred to purchase carpet for the patio? (Note: only full rolls of carpeting can be purchased)
A. $20 B. $8640 C. $580 D. $80
Simplify.(-3x3)5
A. 243x15 B. -243x15 C. -243x8 D. 243x8
Simplify the algebraic expression.(8z + 10) - (3z - 8)
A. 5z - 18 B. 5z + 18 C. 5z + 2 D. 11z + 18