Solve the problem.At a local grocery store the demand for ground beef is approximately 50 pounds per week when the price per pound is $4, but is only 40 pounds per week when the price rises to $5.50 per pound. Assuming a linear relationship between the demand x and the price per pound p, express the price as a function of demand. Use this model to predict the demand if the price rises to $5.80 per pound.
A. p = 0.15x + 11.5; 38 pounds
B. p = 11.5x + -0.15; 40 pounds
C. p = - 0.15x + 11.5; 38 pounds
D. p = - 0.15x - 11.5; 40 pounds
Answer: C
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Mark Collins had an adjusted gross income of $24,014 last year. He had deductions of $976 for state income tax, $563 for property tax, $2827 in mortgage interest, and $230 in contributions. Collins claims one exemption and files as a single person.
A. $1752.10 B. $1062.70 C. $3027.10 D. $1932.70
The graph of a function is given. Determine whether the function is increasing, decreasing, or constant on the given interval.(2, ?)
A. increasing B. decreasing C. constant
Subtract. Write a mixed numeral for the answer.
A. 15
B. 14
C. 15
D. 14
Factor out the largest possible common factor.2(y + 9) - x(y + 9)
A. (2y + 18) - (xy + 9x) B. (y + 9)(2 + x) C. (y + 9)(2 - x) D. (y - 9)(x - 2)