Compute the value of the expression.
A. 21
B. 20
C. 49
D. 23
E. 18
Answer: A
Mathematics
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Find the median.5, 1, 26, 10, 21, 45, 36, 34
A. 26 B. 22.5 C. 21 D. 23.5
Mathematics
Write the matrix equation as a system of linear equations without matrices.
= 
A. -7x1 + x2 + x3 = -8 x1 - 5x2 = 8 B. -7x1 = -8 x1 + x2 = 8 -8x1 - 5x2 = -7 C. -7x1 + x2 = -8 x1 + 8x2 = 8 -8x1 - 5x2 = -7
Mathematics
A football team had control of the ball for the first nine plays in a game. The chart shows the yards gained or lost in each of those plays. 
If the team had lost four times as many yards in the third play as it did, what would the total gain or loss have been for the third and fourth plays combined?
A. 11 yards B. -14 yards C. -11 yards D. -5 yards
Mathematics
Simplify the expression.
+ 
? 
A. 
B. 
C. 
D. 
Mathematics