Given matrix A, find the indicated cofactor.Find A12.A = 
A. 24
B. -21
C. 21
D. 9
Answer: B
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Provide an appropriate response.Write the statement as an equation and solve: Four less than a number is 3.
A. x + 4 = 3; x = 7
B. 
= 3; x = 12
C. 7 - x = 3; x = 4
D. x - 4 = 3; x = 7
Change the given quantity to the indicated unit.48 qt = 
gal
A. 192 B. 12 C. 96 D. 24
Factor completely. Make sure you factor out the GCF or the negative of the GCF if possible. If prime, so state.14x2 + 63x - 35
A. (14x - 7)(x + 5) B. 7(2x + 1)(x - 5) C. prime D. 7(2x - 1)(x + 5)
Is x a negative number? Explain.
A) Not necessarily; x is a variable that may represent a positive number or negative number or zero. B) Yes, because there is a positive sign before x. C) No, because there is no positive sign before x. D) No, because there is no negative sign before x. E) No, because negative means opposite and the opposite of x is y.