Convert the improper fraction to a mixed number.
A. 74
B. 74
C. 
D. 10
Answer: D
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Perform the indicated operation. Simplify if possible.
+ 
A. 
B. 
C. 
D. 
Simplify the expression. Assume that variables represent nonzero numbers.
2
A. 
B. 
C. 
D. 
Solve the problem.Suppose an animal feed to be mixed from soybean meal and oats must contain at least 100 lb of protein, 20 lb of fat, and 9 lb of mineral ash. Each 100-lb sack of soybean meal costs $20 and contains 50 lb of protein, 10 lb of fat, and 8 lb of mineral ash. Each 100-lb sack of oats costs $10 and contains 20 lb of protein, 5 lb of fat, and 1 lb of mineral ash. How many sacks of each should be used to satisfy the minimum requirements at minimum cost? Fractional sacks are allowed.
A. 
sacks of soybeans and 
sacks of oats
B. 2 sacks of soybeans and 0 sacks of oats
C. 
sacks of soybeans and 
sacks of oats
D. 0 sacks of soybeans and 4 sacks of oats
Match the graph to one of the listed functions.
A. f(x) = x2 - 2x - 1 B. f(x) = x2 + 2x C. f(x) = x2 - 2x D. f(x) = x2 + 2x - 1