Solve the problem.Assume it costs 25 cents to mail a letter weighing one ounce or less, and then 20 cents for each additional ounce or fraction of an ounce. Let L(x) be the cost of mailing a letter weighing x ounces. Graph y = L(x).
A.
B. 
C. 
D.
Answer: D
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Solve the problem.Evaluate src="https://sciemce.com/media/4/ppg__ghvb0609192137__f1q50g7.jpg" alt="" style="vertical-align: -4.0px;" />
Rwhere R is the parallelepiped enclosed by the planes 
A. 
B. 
C. 
D. 
Pick which graph satisfies the given conditions.Quartic polynomial with one real zero and a positive leading coefficient.
A. 
B. 
C. 
D. 
Solve the problem.Tim and Judy mix two kinds of feed for pedigreed dogs. They wish to make 21 pounds of feed worth $0.88 per pound by mixing one kind worth $0.77 per pound with another worth $0.96 per pound. How many pounds of the cheaper kind should they use in the mix? Round your answer to the nearest pound, if necessary.
A. 9 lb B. 12 lb C. 17 lb D. 11 lb
Divide.
A. 7m2 - 8m + 2 B. m2 + 9m + 10 C. 7m2 + 8m + 2 D. m2 + 8m + 7