Does the system have one solution, no solution, or an infinite number of solutions? x - 2y = 52x - 4y = 18
A. Infinite number
B. No Solution
C. One
Answer: B
Mathematics
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Find the Jacobian 
or 
(as appropriate) using the given equations.
A. 35 B. 5 C. -5 D. -35
Mathematics
There are 65 students in Jose's class. 
of the students are science majors. How many students are science majors?
A. 39 B. 24 C. 130 D. 26
Mathematics
Find an equation of variation in which y varies directly as x and the following is true.y = 0.9, when x = 0.5
A. y = 
x
B. y = 
x
C. y = 
D. y = 0.9x
Mathematics
Find the best buy and give the unit price.Brand A 20 oz for $3.40Brand B 24 oz for $4.32
A. Brand B, $0.18 B. Equal value C. Brand A, $0.18 D. Brand A, $0.17
Mathematics