Solve the problem.A kitchen remodeling company determines that the marginal cost, in dollars per foot, of installing x feet of kitchen countertop is given by 
Find the cost of installing an extra 13 feet of countertop after 30 feet have already been ordered.
A. $55.00
B. $27.50
C. $58.05
D. $257.75
Answer: B
Mathematics
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Determine whether the given number is approximate or exact.The history class has 104 students.
A. Approximate B. Exact
Mathematics
Apply Green's Theorem to evaluate the integral.
(6y + x) dx + (y + 3x) dyC: The circle (x - 3)2 + (y - 5)2 = 25
A. -75? B. -30 C. 75? D. -240
Mathematics
Find the final discount date and the net payment date.Invoice date: Nov 20As of: Nov 27Terms: 8/15, n/30
A. Final discount: Dec 5 Payment due: Dec 20 B. Final discount: Dec 12 Payment due: Dec 27 C. Final discount: Dec 13 Payment due: Dec 27 D. Final discount: Dec 27 Payment due: Dec 12
Mathematics
Find the sum, if it exists.
A. -255 B. 10 C. -66 D. Does not exist
Mathematics