Determine whether the two pairs of numbers are proportional.3, 
and 12, 7
A. No
B. Yes
Answer: B
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Factor the expression so that the remaining factors have only integer coefficients.
?
?
A. 
B. 
C. 
D. 
E. 
Solve the problem.Determine whether 
is a solution of the system 9x - 9y - 6z = -11 6x + 3y - 3z = 1 x - y + 2z = -3.
A. No B. Yes
Solve the problem.There is a relationship between the expected number of tickets sold for a raffle and the dollar value of the prize for the raffle. The equation T - 8P = 250 describes this relationship, where T is the expected number of tickets sold, and P is the dollar value of the raffle prize. Suppose the expected ticket sales for a certain raffle are 5,050. Determine the dollar value of the raffle prize.
A. $600 B. $4,800 C. $550 D. $40,650
Solve the system of equations using the inverse of the coefficient matrix.
A. x = 3, y = -1 B. x = -3, y = 1 C. x = 1, y = -3 D. x = -1, y = 3