Solve the equation.log (x + 5) = log (2x + 4)
A. 9
B. -1
C. - 
D. 1
Answer: D
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Solve the problem.A holder of a $9000, 7%, 210-day note dated June 8 decides to sell the note at a discount based on ordinary interest. The note is sold on July 18 at a discount of 12% using the banker's rule. Find the proceeds.
A. $8836.68 B. $8770.64 C. $8833.55 D. $9057.85
Graph the ellipse.16(x - 1)2 + 4(y - 2)2 = 64
A. 
B. 
C. 
D. 
Use trigonometric identities to solve each equation in the interval [0, 2?]1 + cos x = 2 sin2 x
A. 
B. 
C. 
D. 
Solve the problem.You invested $6000 and started a business selling vases. Supplies cost $19 per vase and you are selling each vase for $29. Let x represent the number of vases produced and sold and write the cost function, C, and revenue function, R.
A. C(x) = 19x + 6000x R(x) = 29x B. C(x) = 19x + 6000 R(x) = 29x C. C(x) = 19x + 6000 R(x) = 29 D. C(x) = 19x + 29 R(x) = 6000x