Identify the parts of each expression. Choose from these labels: variable, constant, and coefficient.
A. a is a constant; b is a variable.
B. a is a variable; b is a variable.
C. a is a constant; b is a constant.
D. a is a variable; b is a constant.
Answer: B
Mathematics
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What is the percent of total take-home pay spent for food?
A. 50% B. 20% C. 12.5% D. 31%
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Solve. 5x - 4y + 10z = -310x + 2y - 15z = 2115x - 2y + 10z = 0
A. 
B. 
C. 
D. 
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Determine if the ordered pair is a solution to the system of linear inequalities in two variables.
(5, -3)
A. Yes B. No
Mathematics
Find the length of the unknown side of the right triangle. In each case, a and b represent the lengths of the legs and c represents the length of the hypotenuse.
a = 25, b = 60; find c
A. 2975
B. 4225
C. 5
D. 65
Mathematics