Provide an appropriate response.
A restaurant that will ship barbecue charges $8 per pound of ribs plus a $20 shipping charge to deliver the ribs. Write the function that represents the cost of shipping barbecue for any quantity, in pounds, of ribs. Then evaluate that function for shipping 5 pounds of ribs.
A. C(x) = 8x + 20; C(5) = 60
B. C(x) = 8x + 20; C(5) = 33
C. C(x) = 28x; C(5) = 140
D. C(x) = 20x + 8; C(5) = 108
Answer: A
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Solve the problem.The cost, T, in hundreds of dollars, of tuition at one community college is given by 
where c is the number of credits for which a student registers. Graph the equation and use the graph to estimate the cost of tuition if a student registers for 9 credits.
A. $1900 B. $700 C. $1500 D. $1425
Use Gaussian elimination to find the complete solution to the system of equations, or state that none exists.x + y + z=92x - 3y + 4z=7x - 4y + 3z=-2
A. {(- 
+ 
, 
- 
, z)}
B. {(
+ 
, 
- 
, z)}
C. {(- 
+ 
, 
+ 
, z)}
D. {(
+ 
, 
+ 
, z)}
Perform the indicated operations and simplify the result. Leave the answer in factored form.
- 
A. 7x
B. 
C. 
D. 0
Write the expression in lowest terms.
A. 
B. 
C. 
D. 