Simplify the expression. First use the distributive property to remove any parentheses.
(9x + 8) - 
(6x - 9)
A. - 
B. - 
C. 
D. 
Answer: D
Mathematics
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Find the second derivative of the function.r = 
(4 - ?)
A. 
= 
B. 
= - 
- 1
C. 
= - 
- 1
D. 
= 
- ?
Mathematics
Solve the equation.39t - 6 = 7t + 14
A. 
B. 
C. 
D. 
Mathematics
Find the number of subsets of the set.{7, 8, 9}
A. 6 B. 3 C. 7 D. 8
Mathematics
Solve the absolute value equation.|0.3x + 0.4| = 2
A. x = 0.667, 2 B. x = -5.333, 8 C. x = -2, -0.667 D. x = -8, 5.333
Mathematics