Solve the formula for the indicated variable.P = 
for r
A. r = 
B. r = 
C. r = 
D. r = P - At
Answer: B
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Divide.
A. 4x2 + 32x - 28 + 
B. 4x2 + 8x - 7 + 
C. 4x2 + 8x - 7 + 
D. 4x3 + 8x2 - 7x + 
Insert <, >, or = between the pair of numbers to form a true statement.
7.715
A. < B. = C. >
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?
A. 0 sacks of soybeans and 2 sacks of oats
B. 
sacks of soybeans and 
sacks of oats
C.
| 2 sacks of soybeans and 0 sacks of oats |
D.
sacks of soybeans and 
sacks of oatsAdd.
A. 12,347 B. 11,337 C. 11,347 D. 11,247