Solve the problem.A moving firm charges a flat fee of $45 plus $40 per hour. Let f(x) represent the cost, in dollars, of using the moving firm for x hours. Write a formula for f(x).
A. f(x) = 45x - 40
B. f(x) = 45x + 40
C. f(x) = 40x + 45
D. f(x) = 40x - 45
Answer: C
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Solve the problem.The height of a projectile after t seconds when fired straight up with an initial speed of 72 feet per second from the ground is given by the polynomial 
. Write the polynomial 
in factored form.
A. -8t(2t - 9) B. -8(2t2 - 9t) C. t(-16t + 72) D. -t(16t - 72)
Write the percent as a fraction or mixed number in simplest form.8
%
A. 
B. 4
C. 
D. 
Find the equation in standard form of the parabola described.Vertex at (0, 0); Directrix the line y = -8
A. x2 = -32y B. y2 = 32x C. y2 = 8x D. x2 = 32y
Provide an appropriate response.A manufacturer sells his product at $12.50 per unit, selling all he produces. His fixed cost is $5,000 and his variable cost per unit is $8.50. (a) At what level of production will he break even? (b) At what level of production will he have a profit of $10,000?
What will be an ideal response?