Find all (a) minors and (b) cofactors of the matrix 
. Show your work.
What will be an ideal response?
(a) 
?
(b) 
Mathematics
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Solve the problem.The students at ABC School are selling tickets for their carnival. Each ticket sells for 50¢. The school wants to raise $7500 in ticket sales. If it is now 5 weeks prior to the carnival, how many tickets need to be sold each week to reach the goal of $7500.
A. 15,000 B. 300 C. 3000 D. 30,000
Mathematics
Simplify.
A. 36
B. 
C. 1
D. 
Mathematics
Determine whether the lines are parallel, perpendicular, or neither. 9x + 3y = 12 and 24x + 8y = 34
A. Perpendicular B. Neither C. Parallel
Mathematics
Use scientific notation to solve the problem.If the speed of light is 3.00 × 108 m/sec, how long does it take light to travel 
the distance from the sun to Mars?
A. 7.6 × 103 sec B. 76 sec C. 7.6 × 102 sec D. 7.6 × 102 min
Mathematics