Roderick has an Internet service that charges by the hour. This piecewise function shows the cost of the Internet service based on the number of hours that Roderick uses the Internet.
Last month, Roderick used the Internet for 7.5 hours. What was he charged?
What will be an ideal response?
$18.75; 10 + 2.50(7.5 
4) = $18.75
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Find ? for 0° ? ? < 360° that satisfies the stated conditions. Round your answer to the nearest hundredth.tan ? = -1.45, sin ? < 0
A. 259.59° B. 349.59° C. 304.59° D. 303.21°
Solve the equation by factoring.5x2 + 11x - 12 = 0
A. 
B. {4, -3}
C. 
D. 
Solve the problem.A population of birds in a small county can be modeled by the polynomial 
where x = 1 corresponds to July 1, x = 2 to July 2, and so on. Estimate the number of birds on July 16th.
A. 10,380 B. 8244 C. 26,400 D. 35,980
Solve.The cost in dollars for producing x units of a particular commodity is given by the function 
The number of units produced is given by the function 
Determine a function h that gives the average cost per item for producing x units.
A. h(x) = 
B. h(x) = 52.23x2 + 359x
C. h(x) = 52.23x + 359
D. h(x) = 