Solve and, when appropriate, round the answer to the nearest tenth.A manufacturer's cost is given by C = 400 
+ 200, where C is the cost and n is the number of parts produced. How many parts are produced when the cost is $4600?
A. 121
B. 10,648
C. 4400
D. 1331
Answer: D
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Rationalize the denominator.
A. 
B. 
C. 
D. 
Solve the problem.A psychologist studying the effects of good nutrition on the behavior of rabbits feeds one group a combination of three foods, I, II, and III. Each of these foods contains three additives, A, B, and C, that are used in the study. The table below gives the percent of each additive that is present in each food. If the diet being used requires 19.1 g per day of A, 8.94 g of B, and 14.02 g of C, find the number of grams of food II that should be used each day. Let z represent the number of grams of food III.
A. 2.7z - 60 B. 1.8z + 54 C. 2.1z + 63 D. 128 - 3.2z
Graph.25(x - 2)2 - 9(y + 4)2 = 225
A. 
B. 
C. 
D. 
Find the sum.4 + 8 + 12 + . . . + 400
A. 20,200 B. 19,998 C. 40,400 D. 39,996