Change the mixed number into an improper fraction.7
A. 
B. 
C. 
D. 
Answer: C
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Solve the equation.4x + 4 = 5(x - 2)
A. 6 B. -14 C. -6 D. 14
Decide whether the equation is or is not an identity.sin (? + ?) + sin (? - ?) = 2 sin ? cos ?
A. Identity B. Not an identity
Answer the question or complete the sentence to make a true statement.According to the rules for the order of operations, what should be the first step when simplifying the expression [-4 + (-7 + 4)] + (-8 + 6)?
A. Find the sum of -4 and -7 B. Find the sum of -4 and -8 C. Find the sum of -7 and 4 D. Find the sum of 4 and -8
Add or subtract vertically.Subtract -x3y3 + x2y2 - x2y - 4x + 4 from 7x3y3 + 6x2y2 - x2y + xy2 + 4x + 2.
A. 8x3y3 + 5x2y2 + xy2 + 8x - 2 B. 8x3y3 + 7x2y2 + x2y + 8x - 2 C. 8x3y3 + 7x2y2 - 2x2y + xy2 + 6 D. 8x3y3 + 5x2y2 + 2xy2 - 2