Simplify by first removing the parentheses and then combining the like terms.
A. 2x - 3
B. 12x - 3
C. 15x
D. 12x - 8
E. 3x - 12
Answer: B
Mathematics
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Solve the problem.Assume that a watermelon dropped from a tall building falls 
in t sec. Find the watermelon's average speed during the first 5 sec of fall and the speed at the instant 
A. 160 ft/sec; 81 ft/sec B. 80 ft/sec; 160 ft/sec C. 40 ft/sec; 80 ft/sec D. 81 ft/sec; 162 ft/sec
Mathematics
Write an inequality involving the variable x that describes the set of numbers graphed.
A. x ? 7 B. x > 7 C. x ? 7 D. x < 7
Mathematics
Solve the inequality. Give the solution set in both interval and graph forms.5x - 3 ? 4x - 5
A. (-?, 5)
B. (5, ?)
C. [-2, ?)
D. (-?, -2]
Mathematics
Solve the proportion.
= 
A. 
B. 
C. 
D. 90
Mathematics